Gps tracking device signal jammer game - china gps jammer game

By Saeed Daneshmand, Ali Jafarnia-Jahromi, Ali Broumandan, and Gérard Lachapelle Most anti-spoofing techniques are computationally complicated or limited to a specific spoofing scenario. A new approach uses a two-antenna array to steer a null toward the direction of the spoofing signals, taking advantage of the spatial filtering and the periodicity of the authentic and spoofing signals. It requires neither antenna-array calibration nor a spoofing detection block, and can be employed as an inline anti-spoofing module at the input of conventional GPS receivers. GNSS signals are highly vulnerable to in-band interference such as jamming and spoofing. Spoofing is an intentional interfering signal that aims to coerce GNSS receivers into generating false position/navigation solutions. A spoofing attack is, potentially, significantly more hazardous than jamming since the target receiver is not aware of this threat. In recent years, implementation of software receiver-based spoofers has become feasible due to rapid advances with software-defined radio (SDR) technology. Therefore, spoofing countermeasures have attracted significant interest in the GNSS community. Most of the recently proposed anti-spoofing techniques focus on spoofing detection rather than on spoofing mitigation. Furthermore, most of these techniques are either restricted to specific spoofing scenarios or impose high computational complexity on receiver operation. Due to the logistical limitations, spoofing transmitters often transmit several pseudorandom noise codes (PRNs) from the same antenna, while the authentic PRNs are transmitted from different satellites from different directions. This scenario is shown in Figure 1. In addition, to provide an effective spoofing attack, the individual spoofing PRNs should be as powerful as their authentic peers. Therefore, overall spatial energy of the spoofing signals, which is coming from one direction, is higher than other incident signals. Based on this common feature of the spoofing signals, we propose an effective null-steering approach  to set up a countermeasure against spoofing attacks. This method employs a low-complexity processing technique to simultaneously de-spread the different incident signals and extract their spatial energy. Afterwards, a null is steered toward the direction where signals with the highest amount of energy impinge on the double-antenna array. One of the benefits of this method is that it does not require array calibration or the knowledge of the array configuration, which are the main limitations of antenna-array processing techniques. Processing Method The block diagram of the proposed method is shown in Figure 2. Without loss of generality, assume that s(t) is the received spoofing signal at the first antenna. Figure 2. Operational block diagram of proposed technique. The impinging signal at the second antenna can be modeled by , where θs and μ signify the spatial phase and gain difference between the two channels, respectively. As mentioned before, the spoofer transmits several PRNs from the same direction while the authentic signals are transmitted from different directions. Therefore, θs is the same for all the spoofing signals. However, the incident authentic signals impose different spatial phase differences. In other words, the dominant spatial energy is coming from the spoofing direction. Thus, by multiplying the conjugate of the first channel signals to that of the second channel and then applying a summation over N samples, θs can be estimated as (1) where r1 and r2 are the complex baseband models of the received  signals at the first and the second channels respectively, and Ts is the sampling duration. In (1), θs can be estimated considering the fact that the authentic terms are summed up non-constructively while the spoofing terms are combined constructively, and all other crosscorrelation and noise terms are significantly reduced after filtering. For estimating μ, the signal of each channel is multiplied by its conjugate in the next epoch to prevent noise amplification. It can easily be shown that μ can be estimated as (2) where T is the pseudorandom code period. Having  and  a proper gain can be applied to the second channel in order to mitigate the spoofing signals by adding them destructively as (3) Analyses and Simulation Results We have carried out simulations for the case of 10 authentic and 10 spoofing GPS signals being transmitted at the same time. The authentic sources were randomly distributed over different azimuth and elevation angles, while all spoofing signals were transmitted from the same direction at azimuth and elevation of 45 degrees. A random code delay and Doppler frequency shift were assigned to each PRN. The average power of the authentic and the spoofing PRNs were –158.5 dBW and –156.5 dBW, respectively. Figure 3 shows the 3D beam pattern generated by the proposed spoofing mitigation technique. The green lines show the authentic signals coming from different directions, and the red line represents the spoofing signals. As shown, the beam pattern’s null is steered toward the spoofing direction. Figure 3. Null steering toward the spoofer signals. In Figure 4, the array gain of the previous simulation has been plotted versus the azimuth and elevation angles. Note that the double-antenna anti-spoofing technique significantly attenuates the spoofer signals. This attenuation is about 11 dB in this case. Hence, after mitigation, the average injected spoofing power is reduced to –167.5 dBW for each PRN. As shown in Figure 4, the double-antenna process has an inherent array gain that can amplify the authentic signals. However, due to the presence of the cone of ambiguity in the two-antenna array beam pattern, the power of some authentic satellites that are located in the attenuation cone might be also reduced. Figure 4. Array gain with respect to azimuth and elevation. Monte Carlo simulations were then performed over 1,000 runs for different spoofing power levels. The transmitted direction, the code delay, and the Doppler frequency shift of the spoofing and authentic signals were changed during each run of the simulation. Figure 5 shows the average signal to interference-plus-noise ratio (SINR) of the authentic and the spoofing signals as a function of the average input spoofing power for both the single antenna and the proposed double antenna processes. A typical detection SINR threshold corresponding to PFA=10-3 also has been shown in this figure. Figure 5. Authentic and spoofed SINR variations as a function of average spoofing power. In the case of the single antenna receiver, the SINR of the authentic signals decreases as the input spoofing power increases. This is because of the receiver noise-floor increase due to the cross-correlation terms caused by the higher power spoofing signals. However, the average SINR of the spoofing signals increases as the power of the spoofing PRNs increase. For example, when the average input spoofing power is –150 dBW, the authentic SINR for the single-antenna process is under the detection threshold, while the SINR of the spoofing signal is above this threshold. However, by considering the proposed beamforming method, as the spoofing power increases, the SINR of the authentic signal almost remains constant, while the spoofing SINR is always far below the detection threshold. Hence, the proposed null-steering method not only attenuates the spoofing signals but also significantly reduces the spoofing cross-correlation terms that increase the receiver noise floor. Early real-data processing verifies the theoretical findings and shows that the proposed method indeed is applicable to real-world spoofing scenarios. Conclusions The method proposed herein is implemented before the despreading process; hence, it significantly decreases the computational complexity of the receiver process. Furthermore, the method does not require array calibration, which is the common burden with array-processing techniques. These features make it suitable for real-time applications and, thus, it can be either employed as a pre-processing unit for conventional GPS receivers or easily integrated into next-generation GPS receivers. Considering the initial experimental results, the required antenna spacing for a proper anti-spoofing scenario is about a half carrier wavelength. Hence, the proposed anti-spoofing method can be integrated into handheld devices. The proposed technique can also be easily extended to other GNSS signal structures. Further analyses and tests in different real-world scenarios are ongoing to further assess the effectiveness of the method. Saeed Daneshmand is a Ph.D. student in the Position, Location, and Navigation (PLAN) group in the Department of Geomatics Engineering at the University of Calgary. His research focuses on GNSS interference and multipath mitigation using array processing. Ali Jafarnia-Jahromi is  a Ph.D. student in the PLAN group at the University of Calgary. His  research focuses on GNSS spoofing detection and mitigation techniques. Ali Broumandan received his Ph.D. degree from  Department of Geomatics Engineering, University of Calgary, Canada. He is a senior research associate/post-doctoral fellow in the PLAN group at the University. Gérard Lachapelle holds a Canada Research Chair in wireless location In the Department of Geomatics Engineering at the University of Calgary in Alberta, Canada, and is a member of GPS World’s Editorial Advisory Board.

gps tracking device signal jammer game

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12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,gn netcom a30750 ac adapter 7.5vdc 500ma used -(+) 0.5x2.4mm rou,plantronics 7501sd-5018a-ul ac adapter 5v 180ma bluetooth charge,a mobile jammer circuit or a cell phone jammer circuit is an instrument or device that can prevent the reception of signals by mobile phones.this blocker is very compact and can be easily hide in your pocket or bag,l.t.e lte12w-s2 ac adapter 12vdc 1a 12w power supply,t027 4.9v~5.5v dc 500ma ac adapter phone connector used travel,fsp fsp050-1ad101c ac adapter 12vdc 4.16a used 2.3x5.5mm round b,vswr over protectionconnections,000 (67%) 10% off on icici/kotak bank cards.dve netbit dsc-51f-52p us switching power supply palm 15pin,dell zvc65n-18.5-p1 ac dc adapter 18.5v 3.a 50-60hz ite power,hp hstn-f02x 5v dc 2a battery charger ipaq rz1700 rx.ac car adapter phone charger used 1.5x3.9x10.8cm round barrel.advent t ha57u-560 ac adapter 17vdc 1.1a -(+) 2x5.5mm 120vac use,delta adp-150cb b ac adapter 19v 7.9a power supply,cui inc epas-101w-05 ac adapter 5vdc 2a (+)- 0.5x2.3mm 100-240va,we now offer 2 mobile apps to help you.it works well for spaces around 1,yixin electronic yx-3515a1 ac adapter 4.8vdc 300ma used -(+) cut.kinetronics sc102ta2400f01 ac adapter 24vdc 0.75a used 6pin 9mm,rd1200500-c55-8mg ac adapter 12vdc 500ma used -(+) 2x5.5x9mm rou,this paper describes the simulation model of a three-phase induction motor using matlab simulink.channel master 8014ifd ac adapter dc 24v 600ma class 2 power.new bright a519201194 battery charger 7v 150ma 6v nicd rechargab.liteon pa-1151-08 ac adapter 19v 7.9a used 3.3 x 5.5 x 12.9mm.energizer pc14uk battery charger aa aaa,southwestern bell freedom phone 9a200u-28 ac adapter 9vac 200ma,toshiba adp-65db ac adapter 19vdc 3.42a 65w for gateway acer lap.this circuit analysis is simple and easy,kodak asw0718 ac adapter 7vdc 1.8a for easyshare camera,energizer accu chm4fc rechargeable universal charger like new 2..dual group au-13509 ac adapter 9v 1.5a used 2x5.5x12mm switching,ppp003sd replacement ac adapter 18.5v 6.5a laptop power supply,3 w output powergsm 935 – 960 mhz,ss-05750 ac adapter 5vdc 750ma used mini usb connector travel,axis a41208c ac dc adapter 12v 800ma power supply,it has the power-line data communication circuit and uses ac power line to send operational status and to receive necessary control signals,cui inc 3a-161wu06 ac adapter 6vdc 2.5a used -(+) 2x5.4mm straig,microtip photovac e.o.s 5558 battery charger 16.7vdc 520ma class,grundig nt473 ac adapter 3.1vdc 0.35a 4vdc 0.60a charging unit l.modeling of the three-phase induction motor using simulink,each band is designed with individual detection circuits for highest possible sensitivity and consistency,symbol 59915-00-00 ac adapter 15vdc 500ma used -(+)- 2 x 5.4 x 1,delta electronics adp-90sn ac adapter 19v 4.74a power supply.nec pc-20-70 ultralite 286v ac dc adaoter 17v 11v power supply.foreen industries ltd. 28-d09-100 ac adapter 9v dc 100ma used 2.edac ea1060b ac adapter 18-24v dc 3.2a used 5.2 x 7.5 x 7.9mm st,acbel api1ad43 ac adapter 19v 4.74a laptop power supply.“use of jammer and disabler devices for blocking pcs,lenovo adlx65ndt2a ac adapter 20vdc 3.25a used -(+) 5.5x8x11mm r.friwo emc survivair 5200-73 ac adapter 7.5vdc 450ma used 3pin,motorola psm5185a cell phone charger 5vdc 550ma mini usb ac adap.igo 6630076-0100 ac adapter 19.5vdc 90w max used 1.8x5.5x10.7mm,delta adp-40wb ac adapter 12vdc 3330ma -(+) 2x5.5mm used 100-240,ault t22-0509-001t03 ac adapter 9vac 0.5a us robotics used ~(~).replacement pa3201u-1aca ac adapter 19vdc 6.3a power supply tosh.finecom ac adapter yamet plug not included 12vac 20-50w electron,this project shows the measuring of solar energy using pic microcontroller and sensors.dve dsa-9pfb-09 fus 090100 ac adapter +9v 1a used -(+)- 2x5.5mm,kinyo teac-41-090800u ac adapter 9vac 800ma used 2.5x5.5mm round,this paper uses 8 stages cockcroft –walton multiplier for generating high voltage,sii pw-0006-wh-u2 ac adapter 6vdc 1.5a 3 x 3.2 x 9.5 mm straight.ryobi p113 class 2 battery charger 18v one+ lithium-ion batterie.

Apple m7783 ac adapter 24vdc 1.04a macintosh powerbook duo power.12v car charger auto cigrate lighter 1.5x4mm round barrel.this project uses arduino and ultrasonic sensors for calculating the range.phonemate m/n-40 ac adapter 9vac 450ma used ~(~) 2.5x5.5mm 90,replacement tj-65-185350 ac adapter 18.5vdc 3.5a used -(+) 5x7.3,all mobile phones will automatically re- establish communications and provide full service,ault 3com pw130 ac adapter 48vdc 420ma switching power supply,finecom 34w-12-5 ac adapter 5vdc 12v 2a 6pin 9mm mini din dual v,motorola psm4250a ac adapter 4.4vdc 1.5a used cellphone charger.check your local laws before using such devices,charger for battery vw-vbg130 panasonic camcorder hdc-sd9pc sdr-.it captures those signals and boosts their power with a signal booster,bothhand sa06-20s48-v ac adapter +48vdc 0.4a power supply,delta eadp-30hb b +12v dc 2.5a -(+)- 2.5x5.5mm used ite power,the completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days.logitech dsa-12w-05 fus ac adapter 6vdc 1.2a used +(-) 2.1x5.5mm,intermec spn-470-24 ac adapter 24v 3a -(+) used 2.5x5.5x9.4mm pr,nyko aspw01 ac adapter 12.2vdc 0.48a used -(+) 2x5.5x10mm round,hp pa-1900-32ht ac adapter 19vdc 4.74a used ppp012l-e,this cell phone jammer is not applicable for use in europe.consumerware d9100 ac adapter9vdc 100ma -(+) used 2 x 5.4 x 11,practical peripherals dv-8135a ac adapter 8.5vac 1.35amp 2.3x5mm.aironet ad1280-7-544 ac adapter 12vdc 800ma power supply for med.apple usb charger for usb devices with usb i pod charger,type websploit(as shown in below image),it can be placed in car-parks.finecom py-398 ac dc adapter 12v dc 1000ma2.5 x 5.5 x 11.6mm,phiong psa21r-180 ac adapter 18vdc 1.11a used 2.7 x 5.4 x 10.4 m,who offer lots of related choices such as signal jammer.delta eadp-60kb ac adapter 12vdc 5a -(+) 2.5x5.5mm used 100-240v.starcom cnr1 ac dc adapter 5v 1a usb charger.vswr over protectionconnections,what is a cell phone signal jammer,similar to our other devices out of our range of cellular phone jammers.direct plug-in sa48-18a ac adapter 9vdc 1000ma power supply,bi bi13-120100-adu ac adapter 12vdc 1a used -(+) 1x3.5mm round b,even though the respective technology could help to override or copy the remote controls of the early days used to open and close vehicles,oem ad-0650 ac adapter 6vdc 500ma used -(+) 1.5x4mm round barrel,the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,acbel ad9014 ac adapter 19vdc 3.42a used -(+)- 1.8x4.8x10mm,spectra-physics ault sw 306 ac adapter 5v 1a 12v scanning system.skil class ii battery charger 4.1vdc 330ma used flexi charge int,high voltage generation by using cockcroft-walton multiplier.csec csd1300150u-31 ac adapter 13vdc 150ma used -(+)- 2x5.5mm,delta adp-65mh b ac adapter 19vdc 3.42a used 1.8 x 5.5 x 12mm.this system also records the message if the user wants to leave any message,siemens ps50/1651 ac adapter 5v 620ma cell phone c56 c61 cf62 c.ibm 85g6737 ac adapter 16vdc 2.2a -(+) 2.5x5.5mm used power supp,plantronics 7501sd-5018a-ul ac adapter 5vdc 180ma used 1x3x3.2mm.li shin 0405b20220ac adapter 20vdc 11a -(+) used 5x7.4mm tip i,nec op-520-4401 ac adapter 11.5v dc 1.7a 13.5v 1.5a 4pin female,raheem is described to be around 6-2 with a slim build,astrodyne spu16a-105 ac adapter 12vdc 1.25a -(+)- 2x5.5mm switch,compaq pa-1071-19c ac adapter 18.5v dc 3.8a power supply,fujitsu adp-80nb a ac adapter 19vdc 4.22a used -(+) 2.5x5.5mm c,3500g size：385 x 135 x 50mm warranty：one year.bc-826 ac dc adapter 6v 140ma power supply direct plug in,upon activating mobile jammers,compaq 2844 series auto adapter 18.5vdc 2.2a 30w used 2.5x6.5x15.circuit-test std-09006u ac adapter 9vdc 0.6a 5.4w used -(+) 2x5.,sanyo var-33 ac adapter 7.5v dc 1.6a 10v 1.4a used european powe.replacement 3892a327 ac adapter 20vdc 4.5a used -(+) 5.6x7.9x12m,compaq presario ppp005l ac adapter 18.5vdc 2.7a for laptop,deer ad1505c ac adapter 5vdc 2.4a ac adapter plugin power supply.

Max station xk-09-1041152 ac adapter 22.5v 2.67a power supply,gateway2000 adp-45cb ac dc adapter 19v 2.4a power supply,gn netcom ellipe 2.4 base and remote missing stand and cover.noise circuit was tested while the laboratory fan was operational.epson m235a ac adapter 24v 1.5a thermal receipt printer power 3p.aps ad-715u-2205 ac adapter 5vdc 12vdc 1.5a 5pin din 13mm used p,i-mag im120eu-400d ac adapter 12vdc 4a -(+)- 2x5.5mm 100-240vac,astec da2-3101us-l ac adapter 5vdc 0.4a power supply.in this blog post i'm going to use kali linux for making wifi jammer,lei ml12-6120100-a1 ac adapter 12vdc 1a used -(+) 2.5x5.5x9mm ro.rocketfish nsa6eu-050100 ac adapter 5vdc 1a used,the designed jammer was successful in jamming the three carriers in india,archer 273-1651 ac adapter 9vdc 500ma used +(-) 2x5x12mm round b,speed-tech 7501sd-5018a-ul ac adapter 5vdc 180ma used cell phone,panasonic bq-390 wall mount battery charger 1.5v dc 550ma x 4 us,electro-mech co c-316 ac adapter 12vac 600ma used ~(~) 2.5x5.5 r,phase sequence checker for three phase supply.i mean you can jam all the wifi near by you,kensington system saver 62182 ac adapter 15a 125v used transiet,kingpro kad-0112018d ac adapter 12vdc 1.5a power supply.xp power aed100us12 ac adapter 12vdc 8.33a used 2.5 x 5.4 x 12.3,motorola fmp5049a travel charger 4.4v 1.5a.wang wh-501ec ac adapter 12vac 50w 8.3v 30w used 3 pin power sup,sony ac-l 200d ac adapter 8.4vdc 1.5a 4x6mm used for digital cam,a ‘denial-of-service attack’.olympus bu-300 ni-mh battery charger used 1.2vdc 240ma camedia x.the best-quality chlorine resistant xtra life power lycra.ibm 85g6698 ac adapter 16-10vdc 2.2-3.2a used -(+) 2.5x5.5x10mm,leap frog ad529 ac adapter 5vdc 1500ma used usb switching power,several possibilities are available,pa-1121-02hd replacement ac adapter 18.5v 6.5a laptop power supp.sony acp-88 ac pack 8.5v 1a vtr 1.2a batt power adapter battery.sensormatic 0300-0914-01 ac adapter 12/17/20/24v 45va used class.jvc ap-v18u ac dc adapter 11v 1a power supply.casio ad-c59200u ac adapter 5.9vdc 2a power supply.nokia ac-4u ac adapter 5v 890ma cell phone battery charger.bestec ea0061waa ac adapter +12vdc 0.5a 6w used 2 x 5 x 10mm.hp 394900-001 ac adapter 18.5vdc 6.5a 120w used one power supply,while the second one shows 0-28v variable voltage and 6-8a current,datageneral 10094 ac adapter 6.4vdc 2a 3a used dual output power.nikon mh-63 battery charger 4.2vdc 0.55a used for en-el10 lithiu,a sleek design and conformed fit allows for custom team designs to,a&d tb-233 ac adapter 6v dc 500ma used -(+) 2x5.5mm barrel 120va.motorola bb6510 ac adapter mini-usb connector power supply car c.hios cb-05 cl control box 20-30vdc 4a made in japan,panasonic cf-aa5803a m2 ac adapter 15.6v 8a laptop charger power.ibm 12j1441 ac adapter 16vdc 2.2a class 2 power supply 12j1442,a mobile phone jammer prevents communication with a mobile station or user equipment by transmitting an interference signal at the same frequency of communication between a mobile stations a base transceiver station,nokia acp-7u standard compact charger cell phones adapter 8260,. Cell Phone Jammer for sale ,ceiva e-awb100-050a ac adapter +5vdc 2a used -(+) 2x5.5mm digita,asus ex0904yh ac adapter 19v dc 4.74aa -(+)- 2.5x5.5mm 100-240vd,liteon pa-1900-33 ac adapter 12vdc 7.5a -(+)- 5x7.5mm 100-240vac.delta adp-40zb rev.b ac adapter 12vdc 3300ma used 4pin din,motorola fmp5334a ac adapter 5v 560ma used micro usb.motorola nu18-41120166-i3 ac adapter 12vdc 1.66a used -(+) 3x6.5,toshibapa-1900-24 ac adapter 19vdc 4.74a 90w pa3516a-1ac3 powe,fsp 150-aaan1 ac adapter 24vdc 6.25a 4pin 10mm +(::)- power supp,apd ne-17b512 ac adapter 5v 1.2a 12v 1a power supply i.t.e.but communication is prevented in a carefully targeted way on the desired bands or frequencies using an intelligent control.quectel quectel wireless solutions has launched the em20,jabra ssa-5w-09 us 075065f ac adapter 7.5vdc 650ma used sil .7x2,targus apa32us ac adapter 19.5vdc 4.61a used 1.5x5.5x11mm 90° ro,iso kpa-060f 60w ac adapter 12vdc 5a used -(+) 2.1x5.5mm round b.

1 watt each for the selected frequencies of 800.ibm thinkpad 760 ac adapter 49g2192 10-20v 2-3.38a power supply.intertek bhy481351000u ac adapter 13.5vdc 1000ma used -(+) 2.3x5,cyber acoustics u075035d ac adapter 7.5vdc 350ma +(-)+ 2x5.5mm 1,control electrical devices from your android phone,lei iu40-11190-010s ac adapter 19vdc 2.15a 40w used -(+) 1.2x5mm.sumit thakur cse seminars mobile jammer seminar and ppt with pdf report,this multi-carrier solution offers up to ….finecom zfxpa01500090 ac adapter 9vdc 1.5a -(+) 0.6x2.5mm used 9,viasat 1077422 ac adapter +55vdc 1.47a used -(+) 2.1x5.5x10mm ro,ningbo dayu un-dc070200 ac adapter used 7.2vdc 200ma nicd nimh b,.

Gps tracking device signal jammer game - china gps jammer game