A novel sensor using VHF zigzag‐slotted leaky coaxial cable for intruder localization

Qiao, Guifang; Chen, Chongchong; He, Chuanxia

doi:10.1002/mop.31020

Cited by 10 publications

(16 citation statements)

References 14 publications

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“…When an intruder enters the Figure 6, and the subtraction results of Q-signal is 30, 50, and 70 m_Q. The sum represents the subtraction result of IQ-signal by Equation (6). Obviously, a pulse is obtained from the subtraction results, which indicates the position of the human intruder.…”

Section: Experimental and Calculated Results Of Localizationmentioning

confidence: 99%

“…It is not accurate only to consider the subtraction result of I-signal or the subtraction result of Q-signal as the intruder's position, because the subtraction results of I-signal are not always better than the Qsignal in all positions by Equations (4) and (5). As shown in Figure 7, the difference of I-signal and Q-signal becomes large from 30 to 70 m. Therefore, it is possible to avoid this error and improve the detection probability by calculating the square root of the subtraction results of I-signal and Qsignal according to Equation (6). The curves of square root are 30, 50, and 70 m_sum in Figure 7.…”

Section: Experimental and Calculated Results Of Localizationmentioning

confidence: 99%

“…[1][2][3][4][5] The perimeter intrusion detection system (IDS) based on the LCX sensor has been widely studied because of its better concealment, flexible installation, and all-weather conditions work. 6,7 The ordinary localization systems usually detect the target in the area of directional beam of the systems' antennas.…”

Section: Introductionmentioning

confidence: 99%

“…1-5 The perimeter intrusion detection system (IDS) based on the LCX sensor has been widely studied because of its better concealment, flexible installation, and all-weather conditions work. 6,7 The ordinary localization systems usually detect the target in the area of directional beam of the systems' antennas.However, the IDS based on LCX sensor has completely different characteristics. The apertures on the LCX are similar to the array antennas, 8,9 which builds a wide-belt flexible detection area instead of the area of directional beam.…”

mentioning

confidence: 99%

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Research on human intruder detection and localization based on LCX sensor

Qiao

Lü

Chen

et al. 2018

Int J RF Microw Comput Aided Eng

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Many aspects of the intruder detection system (IDS) based on the LCX sensor are still unknown due to its complex propagation characteristics. In order to study the field disturbance mechanism of human intruder and to reduce the phase error caused by the initial state of the detection signal, a novel method of improving the localization accuracy is proposed. At the frequencies of 40, 100, and 200 MHz, the IDS based on the LCX sensor is proposed by analyzing the scattering characteristics of the radar cross section (RCS) of human intruder and using IQ demodulation method. According to the characteristics of the IDS, the RCS is obtained by irradiating the human intruder from three typical radiation directions, which are front, side, and low-side direction in the mentioned frequency range. Combined with the method of pulse accumulation and synchronous subtraction, the intruder localization can be easily realized by using pulse delay positioning method. The results demonstrate the improvement in localization accuracy and the decrement in false positive rate, and the positioning error is less than 1 m.intruder detection, LCX sensor, localization, pulse accumulation, synchronous subtraction, phase errorAs a kind of receiving and emitting device, leaky coaxial cable (LCX) has been intensively used for various application scenarios, such as tunnel, railway, indoor communication, and positioning localization system. 1-5 The perimeter intrusion detection system (IDS) based on the LCX sensor has been widely studied because of its better concealment, flexible installation, and all-weather conditions work. 6,7 The ordinary localization systems usually detect the target in the area of directional beam of the systems' antennas.However, the IDS based on LCX sensor has completely different characteristics. The apertures on the LCX are similar to the array antennas, 8,9 which builds a wide-belt flexible detection area instead of the area of directional beam. The closer the distance between the aperture and the intruder, the more obvious reflection effect the aperture provides. The IDS can avoid the influence of the environment and the terrain. Because most of the power is transmitted in the LCX sensor, the IDS can reach a far distance to achieve the security guarding with the small attenuation in a specific area.Although some IDS based on LCX sensor have been applied, on the one hand, there are few articles discussing the theoretical analysis or mathematical calculation of the electromagnetic disturbance mechanism of the human intruders; on the other hand, with the development of science and technology, there is an urgent need to deal with the IQ-demodulation echo signal with the new method. Based on the results of radar cross section (RCS) calculations, the disturbing mechanism of human intruder is analyzed in this article. The experiments in time-domain and frequency-domain echo signals are carried out in the radiation mode and coupling mode. Moreover, the experiment of the signal receiver unit of IDS is conducted by means of the...

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Section: Experimental and Calculated Results Of Localizationmentioning

confidence: 99%

Section: Experimental and Calculated Results Of Localizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Research on human intruder detection and localization based on LCX sensor

Qiao

Lü

Chen

et al. 2018

Int J RF Microw Comput Aided Eng

Self Cite

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show abstract

“…From that, a method based on TDoA using the time difference between the signal arrival at different ends of the LCX to detect the user location has been proposed in [26,27]. Other positioning methods such as designed pulse signal method are studied in [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

A study for 2-D indoor localization using multiple leaky coaxial cables

Zhu

Hou

et al. 2020

SIP

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Indoor localization technology, which can provide the location information of the target object or stochastic things, is becoming essential requirement for many applications and services such as Internet-of-Things (IoT), real-time control in the development of Fifth-generation (5G) technology. Leaky coaxial cable which can be used as antennas is able to detect the location of the user in a simple way due to its potential property. In this paper, we proposes a simple method to improve the localization accuracy of 2-D indoor localization using multiple LCX cables. In addition, we also evaluate the channel capacity loss due to the localization error of the LCX-MIMO using our proposed method.

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High-resolution and anti-jamming chaotic guided radar prototype for perimeter intrusion detection

Qiao

Jian-guo

et al. 2019

Journal of Electromagnetic Waves and Applications

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A novel sensor using VHF zigzag‐slotted leaky coaxial cable for intruder localization

Cited by 10 publications

References 14 publications

Research on human intruder detection and localization based on LCX sensor

Research on human intruder detection and localization based on LCX sensor

A study for 2-D indoor localization using multiple leaky coaxial cables

High-resolution and anti-jamming chaotic guided radar prototype for perimeter intrusion detection

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