CN107656268A - A kind of multi-target positioning system based on leakage coaxial cable sensor - Google Patents
A kind of multi-target positioning system based on leakage coaxial cable sensor Download PDFInfo
- Publication number
- CN107656268A CN107656268A CN201710790693.2A CN201710790693A CN107656268A CN 107656268 A CN107656268 A CN 107656268A CN 201710790693 A CN201710790693 A CN 201710790693A CN 107656268 A CN107656268 A CN 107656268A
- Authority
- CN
- China
- Prior art keywords
- mrow
- signal
- leakage cable
- cable
- leakage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present invention relates to security protection to guard against field, more particularly to a kind of multi-target positioning system based on leakage coaxial cable sensor, it is characterized in that：Comprise at least：One transmitting leakage cable, one receive leakage cable, and one sends the emitter and one of signal with receiving the receiver for leaking cable-end mouth and being connected to receive leakage cable signal to leakage cable-end mouth is launched；Described transmitting leakage cable is identical with leakage cable length is received, and includes transmitting leakage cable slotted eye gap respectively and receives leakage cable slotted eye gap；Described transmitting leakage cable and reception leakage cable uses parallel lay-up, transmitting leakage cable slotted eye gap and reception leakage cable slotted eye gap face；The emitter produces chirp pulse signals and is divided into two-way, enters transmitting leakage cable as detectable signal all the way, and another way enters receiver as reference signal.Should so as to reduce range resolution, increase detection operating distance, improve detection accuracy, realize Multi-target position.
Description
Technical field
The present invention relates to security protection to guard against field, determines more particularly to a kind of multiple target based on leakage coaxial cable sensor
Position system.
Background technology
Modern intruder detection system is many-sided to EFFECTIVE RANGE, range resolution, measurement accuracy and electronic countermeasure
Propose higher and higher requirement.Most of intruder detection system positioning precisions based on leakage coaxial cable sensor are low, and
Rarely has the research to Multi-target position.When carrying out target acquisition using chirp signals, it is more that carrying can be handled by pulse compression
The echo-signal of target position information；Pulse compression can not only improve the resolution ratio and detectivity of intruder detection system, also
Antijamming capability and flexibility can be improved.
It is low for the intruder detection system positioning precision based on leakage coaxial cable sensor, and without multiple target furnace-incoming coal
The open report of technical research results.
The content of the invention
It is an object of the invention to provide a kind of multi-target positioning system based on leakage coaxial cable sensor, so as to
Reduce range resolution, increase detection operating distance, improve detection accuracy, realize Multi-target position.
Realizing the technical scheme of the object of the invention is：A kind of Multi-target position system based on leakage coaxial cable sensor
System, it is characterized in that：Comprise at least：
One transmitting leakage cable, one receive leakage cable, and one sends the emitter and one of signal with receiving leakage cable to transmitting leakage cable-end mouth
Port is connected to receive the receiver of leakage cable signal；Described transmitting leakage cable is identical with leakage cable length is received, and wraps respectively
Include transmitting leakage cable slotted eye gap and receive leakage cable slotted eye gap；Described transmitting leakage cable and reception leakage cable uses parallel lay-up,
Transmitting leakage cable slotted eye gap and reception leakage cable slotted eye gap face；The emitter produces chirp pulse signals and is divided into two-way, and one
Road enters transmitting leakage cable as detectable signal, and another way enters receiver as reference signal；Described emitter transmitting chirp
Pulse-modulated signal, chirp pulse-modulated signal pulse expression formulas are：
Receiver leaks cable receives echo-signal by receiving, and echo-signal is after low noise amplification by analog-digital converter by mould
Intend signal and rotate into data signal, data signal is removed by digital low-pass filtering and disturbed containing a large amount of high-frequencies, then with ginseng
Examine signal and synchronize and subtract each other, passing through time-domain digital process of pulse-compression, be finally introducing window function optimization, obtain multiple target and know
Not and position,
Wherein A represents the amplitude of chirp signals, tRPulse width is represented, rect functions are rectangular functions, K=B/tR, its
Middle B represents signal bandwidth, and B=fb-fa, fb、faThe termination frequency and initial frequency of chirp pulse signals are represented respectively.
Described LPF uses the low-pass filter circuit of VHF frequency ranges, the echo that receiver receives by receiving leakage cable
Signal contains a large amount of high-frequency interference, can remove by LPF and is disturbed containing a large amount of high-frequencies, is easy to time-domain digital pulse
Compression is handled.
Described time-domain digital process of pulse-compression is will to receive the echo-signal S for leaking cable and receivingRAnd unit pulse (n)
Respond h (n) and carry out time domain linear convolution computing, as chirp signals ST(n) launch and run into target and return, its echo letter
Number SRAnd S (n)T(n) a certain distance, S be correspond toR(n) after by matched filter, output signal x0(n) time domain number, is passed through
Word pulse compression handles to obtain transmitting leakage cable and passes through target position information between receiving leakage cable.
The mirror image that described matched filter unit impulse response h (n) is chirp pulse signal s (n) takes conjugation again, i.e.,:
H (n)=s*(N-n-1)
The output signal s of described matched filter0(n) it is echo impulse data signal s (n) and unit impulse response h
(n) convolution, i.e.,：
Wherein, s (n) represents echo impulse data signal, and h (n) represents unit impulse response sequence, and s (k) is represented k-th
Echo impulse digital signal samples value, h (n-k) represent the conjugate of s (k) k sampled value times of delay.
The present invention operation principle and advantage be：Pass through the leakage cable sensor radiation specificity analysis sensors field of VHF frequency ranges
Distribution, it is right when target enters the investigative range of leakage cable sensor then using signal source to transmitting cable input chirp signals
Echo-signal is contrasted, subtracts each other filtering, and process of pulse-compression, is aided with window function optimization peak feature, distinguishable more mesh
Mark and extract invasion positional information, realize the Multi-target position based on leakage coaxial cable.
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Brief description of the drawings
Fig. 1 principle schematic diagrams of the present invention；
Fig. 2 chirp pulse signals and multiple target echo-signal；
Fig. 3 a are multiple target experiment scenes；
Fig. 3 b are to subtract each other filtering process signal；
Fig. 4 a are five kinds of position grouping pulse compression result schematic diagrams；
Fig. 4 b are 20m-30m result schematic diagrames.
In figure, 1, transmitting leakage cable；2nd, leakage cable is received；3rd, emitter；4th, receiver；5th, transmitting leakage cable slotted eye gap；6th, connect
Receive leakage cable slotted eye gap.
Embodiment
As shown in figure 1, a kind of multi-target positioning system based on leakage coaxial cable sensor, it is characterized in that：At least wrap
Include：
One transmitting leakage cable 1, one receives leakage cable 2, and one sends the emitter 3 and one of signal with receiving to transmitting leakage cable 1 port
Leakage cable 2 port is connected to receive the receiver 4 of the leakage signal of cable 2；Described transmitting leakage cable 1 and the reception leakage length phase of cable 2
Together, include transmitting leakage cable slotted eye gap 5 respectively and receive leakage cable slotted eye gap 6；Described transmitting leakage cable 1 and reception leakage cable 2
Using parallel lay-up, transmitting leakage cable slotted eye gap 5 and the face of reception leakage cable slotted eye gap 6；The emitter 3 produces chirp arteries and veins
Rush signal and be divided into two-way, enter transmitting leakage cable 1 as detectable signal all the way, another way enters receiver 4 as reference signal；Institute
The emitter 3 stated launches chirp pulse-modulated signals, and chirp pulse-modulated signal pulse expression formulas are：
Wherein A represents the amplitude of chirp signals, tRPulse width is represented, rect functions are rectangular functions, K=B/tR, its
Middle B represents signal bandwidth, and B=fb-fa, fb、faThe termination frequency and initial frequency of chirp pulse signals are represented respectively.
The echo-signal that receiver 4 is received by receiving leakage cable 2, echo-signal is after low noise amplification by analog-digital converter
Analog signal is rotated into data signal, data signal is removed by digital low-pass filtering and disturbed containing a large amount of high-frequencies, then
Synchronize and subtract each other with reference signal, passing through time-domain digital process of pulse-compression, be finally introducing window function optimization, obtain more mesh
Mark is other and positions.
Described LPF uses the low-pass filter circuit of VHF frequency ranges, time that receiver 4 receives by receiving leakage cable 2
Ripple signal contains a large amount of high-frequency interference, can remove by LPF and is disturbed containing a large amount of high-frequencies, is easy to time-domain digital arteries and veins
Punching press contracting is handled.
Described time-domain digital process of pulse-compression is will to receive the echo-signal S for leaking cable 2 and receivingR(n) with unit arteries and veins
Punching response h (n) carries out time domain linear convolution computing, as chirp signals ST(n) launch and run into target and return, its echo
Signal SRAnd S (n)T(n) a certain distance, S be correspond toR(n) after by matched filter, output signal x0(n) time domain, is passed through
Digital pulse-compression handles to obtain transmitting leakage cable 1 and passes through target position information between receiving leakage cable 2.
The mirror image that described matched filter unit impulse response h (n) is chirp pulse signal s (n) takes conjugation again, i.e.,:
H (n)=s*(N-n-1)
The output signal s of described matched filter0(n) it is echo impulse data signal s (n) and unit impulse response h
(n) convolution, i.e.,：
Emitter 3 of the present invention launches chirp pulse-modulated signals as shown in Fig. 2 pulse period TR=10us, pulse width
tR=100ns, initial frequency fa=80MHz, terminate frequency fb=120MHz, frequency deviation B=fb-fa=40MHz；τ1And τ2It is to pass through
Echo-signal time delay after two targets.
As shown in Figure 3 a, when transmitting leakage cable 1 and reception leakage cable 2 use parallel lay-up, transmitting leakage cable 1 and reception leakage cable 2 are right
The transmitting leakage cable slotted eye gap 5 answered and the face of reception leakage cable slotted eye gap 6, have first object in transmitting leakage cable 1 and reception leakage cable 2
With the second target, relative motion is not present in first object and the second target on axial distance slightly between difference, with emitter
And Doppler frequency shift.Five groups of position groupings of 10m-30m, 10m-50m, 10m-70m, 10m-90m and 20m-30m have been carried out respectively
Experiment.Signal subtraction, filtering process are carried out to echo-signal, obtain result shown in Fig. 3 b.It can be seen that exist in reception signal
Two target echo signals.In the case of 20m-30m, the echo-signal of two targets produces aliasing, and detection range resolving power is weak.
Pulse compression can improve detection range resolving power.According to Principles of Radar, before not carrying out pulse compression, based on leakage cable
The range resolution of intruder detection system be ctR=13.3m, because signal mainly transmits in cable is leaked, so signal is fast
DegreeThe spread speed c of electromagnetic wave in free space0=3.0e8, the distance after pulse compression
Resolving power is up to c/2B=3.32m.After carrying out process of pulse-compression to five groups of echo-signals, two mesh can be identified from peak value
Mark, as shown in fig. 4 a.Under 20m-30m situations, by introducing Caesar's window (Kaiser window) to the signal after pulse compression
Further improve, it can be seen that the peak value of two targets is clear and legible, as shown in Figure 4 b.
The distance between target and emitter are calculated by the time delay of transmission signal and echo-signal.Table 1 is profit
Details with the present invention to multiple target position.
The experiment value and calculated value of the multiple target positional information of table 1
According to experimental site and the difference for the positional information for calculating acquisition, it can be seen that in 100m investigative range, due to
The present invention reduces range resolution so that the intruder detection system based on leakage cable sensor can realize Multi-target position, fixed
Position precision is within 0.8m.Therefore, pulse compression is carried out to the echo-signal for carrying multiple-object information, and introduces window function optimization
Its peak feature, it is multi-targets recognition and the effective ways of positioning.
The part and the well-known components and common structure of the structure category industry or conventional hand that the present embodiment does not describe in detail
Section, is not described one by one here.
Claims (3)
1. a kind of multi-target positioning system based on leakage coaxial cable sensor, it is characterized in that：Comprise at least：
One transmitting leakage cable, one receive leakage cable, and one sends the emitter and one of signal with receiving leakage cable-end mouth to transmitting leakage cable-end mouth
It is connected to receive the receiver of leakage cable signal；Described transmitting leakage cable is identical with leakage cable length is received, and includes respectively
Transmitting leakage cable slotted eye gap and reception leakage cable slotted eye gap；Described transmitting leakage cable and reception leakage cable uses parallel lay-up, launches
Leak cable slotted eye gap and receive leakage cable slotted eye gap face；The emitter produces chirp pulse signals and is divided into two-way, makees all the way
Enter transmitting leakage cable for detectable signal, another way enters receiver as reference signal；Described emitter transmitting chirp pulses
Modulated signal, chirp pulse-modulated signal pulse expression formulas are：
<mrow>
<msub>
<mi>s</mi>
<mi>T</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>t</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mi>A</mi>
<mo>&CenterDot;</mo>
<mi>r</mi>
<mi>e</mi>
<mi>c</mi>
<mi>t</mi>
<mrow>
<mo>(</mo>
<mfrac>
<mrow>
<mi>t</mi>
<mo>-</mo>
<msub>
<mi>t</mi>
<mi>R</mi>
</msub>
<mo>/</mo>
<mn>2</mn>
</mrow>
<mrow>
<msub>
<mi>t</mi>
<mi>R</mi>
</msub>
<mo>/</mo>
<mn>2</mn>
</mrow>
</mfrac>
<mo>)</mo>
</mrow>
<mi>c</mi>
<mi>o</mi>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mn>2</mn>
<msub>
<mi>&pi;f</mi>
<mn>0</mn>
</msub>
<mi>t</mi>
<mo>+</mo>
<msup>
<mi>&pi;Kt</mi>
<mn>2</mn>
</msup>
<mo>)</mo>
</mrow>
<mo>,</mo>
</mrow>
Receiver leaks cable receives echo-signal by receiving, and echo-signal will be simulated after low noise amplification by analog-digital converter to be believed
Number rotate into data signal, data signal is removed by digital low-pass filtering and disturbed containing a large amount of high-frequencies, then with reference to believing
Number synchronize and to subtract each other, passing through time-domain digital process of pulse-compression, be finally introducing window function optimization, obtain multi-targets recognition and
Positioning,
Wherein A represents the amplitude of chirp signals, tRPulse width is represented, rect functions are rectangular functions, K=B/tR, wherein B tables
Show signal bandwidth, and B=fb-fa, fb、faThe termination frequency and initial frequency of chirp pulse signals are represented respectively.
2. a kind of multi-target positioning system based on leakage coaxial cable sensor according to claim 1, it is characterized in that：
Described LPF uses the low-pass filter circuit of VHF frequency ranges, and receiver is contained by receiving the echo-signal that leakage cable receives
A large amount of high-frequency interference, can remove by LPF and are disturbed containing a large amount of high-frequencies, be easy to time-domain digital process of pulse-compression.
3. a kind of multi-target positioning system based on leakage coaxial cable sensor according to claim 2, it is characterized in that：
Described time-domain digital process of pulse-compression is will to receive the echo-signal S for leaking cable and receivingR(n) with unit impulse response h (n)
Time domain linear convolution computing is carried out, as chirp signals ST(n) launch and run into target and return, its echo-signal SR(n) with
ST(n) a certain distance, S be correspond toR(n) after by matched filter, output signal x0(n) time-domain digital pulse compression, is passed through
Processing obtains passing through target position information between transmitting leakage cable and reception leakage cable.
The mirror image that described matched filter unit impulse response h (n) is chirp pulse signal s (n) takes conjugation again, i.e.,:
H (n)=s*(N-n-1)
The output signal s of described matched filter0(n) for echo impulse data signal s's (n) and unit impulse response h (n)
Convolution, i.e.,：
<mrow>
<msub>
<mi>s</mi>
<mn>0</mn>
</msub>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>*</mo>
<mi>h</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>0</mn>
</mrow>
<mrow>
<mi>N</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</munderover>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>k</mi>
<mo>)</mo>
</mrow>
<mi>h</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>-</mo>
<mi>k</mi>
<mo>)</mo>
</mrow>
</mrow>
Wherein, s (n) represents echo impulse data signal, and h (n) represents unit impulse response sequence, and s (k) represents k-th of echo
Pulse digital signal sampled value, h (n-k) represent the conjugate of s (k) k sampled value times of delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790693.2A CN107656268A (en) | 2017-09-05 | 2017-09-05 | A kind of multi-target positioning system based on leakage coaxial cable sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790693.2A CN107656268A (en) | 2017-09-05 | 2017-09-05 | A kind of multi-target positioning system based on leakage coaxial cable sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107656268A true CN107656268A (en) | 2018-02-02 |
Family
ID=61129371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710790693.2A Pending CN107656268A (en) | 2017-09-05 | 2017-09-05 | A kind of multi-target positioning system based on leakage coaxial cable sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107656268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693527A (en) * | 2018-03-22 | 2018-10-23 | 西安希德电子信息技术股份有限公司 | A kind of sea surface small target acquisition radar system |
| CN109738927A (en) * | 2018-12-14 | 2019-05-10 | 湖南卫导信息科技有限公司 | Navigation signal continuously-positioning system and method inside and outside tunnel |
| CN113068120A (en) * | 2021-03-29 | 2021-07-02 | 中天射频电缆有限公司 | Indoor positioning system and method and communication integrated system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4133389A (en) * | 1988-09-27 | 1990-04-05 | Senstar Corporation | Phase shift divided leaky cable sensor |
| US7576648B2 (en) * | 2003-08-01 | 2009-08-18 | Senstar-Stellar Corporation | Cable guided intrusion detection sensor, system and method |
| CN102195135A (en) * | 2010-02-03 | 2011-09-21 | 株式会社日立制作所 | Low/high frequency shared leakage antenna, base station apparatus and close-range detection system using the antenna |
| CN203827518U (en) * | 2014-03-27 | 2014-09-10 | 京信通信系统（中国）有限公司 | Multi-system combiner platform |
-
2017
- 2017-09-05 CN CN201710790693.2A patent/CN107656268A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4133389A (en) * | 1988-09-27 | 1990-04-05 | Senstar Corporation | Phase shift divided leaky cable sensor |
| US7576648B2 (en) * | 2003-08-01 | 2009-08-18 | Senstar-Stellar Corporation | Cable guided intrusion detection sensor, system and method |
| CN102195135A (en) * | 2010-02-03 | 2011-09-21 | 株式会社日立制作所 | Low/high frequency shared leakage antenna, base station apparatus and close-range detection system using the antenna |
| CN203827518U (en) * | 2014-03-27 | 2014-09-10 | 京信通信系统（中国）有限公司 | Multi-system combiner platform |
Non-Patent Citations (6)
| Title |
|---|
| JUN HONG WANG ET AL.: ""Theory and analysis of leaky coaxial cables with periodic slots"", 《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
| 史艳楠等: ""基于脉冲压缩技术的漏缆故障诊断方法"", 《煤炭学报》 * |
| 官乔等: ""VHF频段漏泄同轴电缆埋地传感器研究"", 《微波学报》 * |
| 李玉爽等: ""泄露电缆导波雷达周界入侵检测系统设计"", 《仪器仪表与检测技术》 * |
| 王明吉等: ""基于泄露电缆导波雷达周界入侵信号处理方法研究"", 《通信与信息处理》 * |
| 罗志瑛: ""泄露电缆导波雷达高精度定位信号处理方法研究"", 《中国优秀硕士学位坤文全文数据库 信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693527A (en) * | 2018-03-22 | 2018-10-23 | 西安希德电子信息技术股份有限公司 | A kind of sea surface small target acquisition radar system |
| CN109738927A (en) * | 2018-12-14 | 2019-05-10 | 湖南卫导信息科技有限公司 | Navigation signal continuously-positioning system and method inside and outside tunnel |
| CN113068120A (en) * | 2021-03-29 | 2021-07-02 | 中天射频电缆有限公司 | Indoor positioning system and method and communication integrated system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5376939A (en) | Dual-frequency, complementary-sequence pulse radar | |
| CN108693527A (en) | A kind of sea surface small target acquisition radar system | |
| CN104407330B (en) | Pulse compression method of phase-coding modulating signal | |
| KR950014902A (en) | Radar system and its detection method for detecting proximity range of targets using frequency modulated continuous wave and stepped frequency waveform | |
| CN114594428B (en) | Intermittent sampling interference suppression method based on linear frequency modulation in pulse-to-pulse frequency coding | |
| CN109490851B (en) | Anti-interference method based on inter-pulse pseudo-random code | |
| CA2513883A1 (en) | Technique for non-coherent integration of targets with ambiguous velocities | |
| CN107783093B (en) | Method for solving distance ambiguity and distance occlusion based on single repetition frequency pulse radar | |
| CN107656268A (en) | A kind of multi-target positioning system based on leakage coaxial cable sensor | |
| CN113759321B (en) | Sectional pulse pressure intermittent sampling forwarding interference resisting method based on agile radar | |
| CN104239683B (en) | Resolving distance-velocity ambiguity method on basis of changing signal rate | |
| CN109975775B (en) | Radar echo semi-actual measurement data simulation method | |
| CN110837081A (en) | High-speed target detection method based on P/D band radar signal fusion processing | |
| KR20160054349A (en) | Radar signal processing method and apparatus for eliminating clutter | |
| CN110988881B (en) | Target detection method of vehicle-mounted millimeter wave radar and vehicle-mounted radar system thereof | |
| CN101464514B (en) | Calibration method and calibration processor for step frequency radar system | |
| CN114578296B (en) | Intermittent sampling interference suppression method based on phase coding signal | |
| CN102778674A (en) | Chirp pulse time delay estimation method for non-uniform sampling | |
| CN113093120A (en) | Method for estimating PRI agile radar target parameters based on capon algorithm | |
| Yipeng et al. | Hough-MHAF localization algorithm for dual-frequency continuous-wave through-wall radar | |
| EP1802995B1 (en) | Improved wideband radar | |
| Wei et al. | Shift-frequency jamming against pulse compression radar | |
| CN109932697B (en) | Weak target detection method based on compressed sensing | |
| EP2772773A1 (en) | Radar proximity fuse and processing method of an echo radar signal for the acquisition of distance information between a target and a Doppler radar | |
| CN110927690A (en) | Range-Doppler two-dimensional matched filtering method based on pseudo code shift multiplicative property |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |