CN108983155A - A kind of radar-communication integration waveform design method - Google Patents

A kind of radar-communication integration waveform design method Download PDF

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Publication number
CN108983155A
CN108983155A CN201810745684.6A CN201810745684A CN108983155A CN 108983155 A CN108983155 A CN 108983155A CN 201810745684 A CN201810745684 A CN 201810745684A CN 108983155 A CN108983155 A CN 108983155A
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China
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symbol
radar
bit
way
communication integration
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CN201810745684.6A
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CN108983155B (en
Inventor
曾浩
吉利霞
赵云霄
方贝贝
董涛
殷杰
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Chongqing University
Space Star Technology Co Ltd
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Chongqing University
Space Star Technology Co Ltd
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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
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/282—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated

Abstract

A kind of radar-communication integration waveform design method, it is characterised in that: input communications baseband signal sequence { aiPass through bit map module, export two-way parallel symbol sequence { bnAnd { cn}；16 kinds of situations of the symbol sebolic addressing of 16 kind situations and output of the bit map module per continuous 4 input bits correspond；Two-way symbol sebolic addressing { the b of bit map module outputnAnd { cn, the linear frequency modulation quadrature carrier s generated respectively with local oscillator moduleI(t) and sQ(t) it is multiplied；In symbol bnAnd cnTwo-way output signal after duration of existence is multiplied is respectively p (t) and q (t)；Radar-communication integration waveform final output signal is z (t)=p (t)+q (t).The present invention improves the availability of frequency spectrum, can be used for radar-communication integration technical field using chirp as the carrier wave of 16QAM modulated signal.

Description

A kind of radar-communication integration waveform design method
Technical field
The present invention relates to radar-communication integration fields, and in particular to arrives a kind of radar-communication integration Waveform Design side Method.
Technical background
In radar-communication integration technology, transmitter can using integrated Waveform Design, i.e., by radar detection waveform and Communication waveforms organically combine, and the design method of this shared waveform is real under the premise of not influencing radar detection function Now communicate.The modulation intelligence carried on waveform is demodulated in receiver signal of communication processing module, realizes communication function；Waveform Echo be received Radar Signal Processing module in machine and carry out processing analysis, come letters such as the position, speed and the shapes that obtain target Breath.Linear frequency modulation (LFM) signal is common radar impulse waveform, using the waveform as carrier wave, can compared with communication waveforms into Row joint integrated design.In existing radar-communication integration Waveform Design, MSK, OFDM, BPSK, QPSK in conjunction with LFM one Body Waveform Design is all techniques well known.But these modulation systems belong to low-order-modulated, and the availability of frequency spectrum is low.In order to mention High spectrum utilization, radar-communication integration Waveform Design need to realize that high order modulation is combined with LFM.
Summary of the invention
The technical problems to be solved by the present invention are: how that the high order modulation 16QAM in communication is real in conjunction with LFM waveform Existing radar-communication integration Waveform Design, improves the availability of frequency spectrum.
The scheme for solving the technical problem is a kind of radar-communication integration waveform design method, it is characterised in that:
Input communications baseband signal sequence { aiLength be T, altogether include 4N bit, each bit ai=± 1, each ratio Special time width is Ta, wherein i=1,2 ..., 4N, and T=4NTa；Baseband sequence passes through bit map module, output two Road parallel symbol sequence { bnAnd { cn, every road symbol sebolic addressing includes N number of symbol, and each symbol is 4 kinds of values, respectively ± 1 He ± 3, each symbol time width is Tbc, wherein n=1,2 ..., N, and Tbc=4Ta；
Bit map module is per continuous 4 input bit { ai,ai+1,ai+2,ai+3, export 1 symbol bnWith 1 symbol cn, wherein n=1,2 ..., N, i=4 (n-1)+1；Input continuous 4 bit { ai,ai+1,ai+2,ai+3Do not sympathize with 16 kinds Condition, with output16 kinds of situations correspond；16 kinds of outputs are respectively
Two-way symbol sebolic addressing { the b of bit map module outputnAnd { cn, it is orthogonal with the two-way that local oscillator module generates respectively Carrier wave sI(t) and sQ(t) it is multiplied；Local oscillator generates in-phase branch carrier wave s firstI(t), sIIt (t) is linear frequency modulation (LFM) pulse, table It is shown as sI(t)=cos (2 π ft+ π μ t2), wherein f be LFM signal initial frequency, μ be LFM signal chirp rate, 0≤t of time≤ T；In-phase branch carrier wave sI(t) pass through pi/2 phase shift, generate quadrature branch carrier wave sQ(t), sQ(t) it is expressed as sQ(t)=sin (2 π ft+πμt2)；In symbol bnAnd cnDuration of existence (n-1) Tbc≤t<nTbc, the two-way output signal after multiplication be respectively p (t)= bnsI(t) and q (t)=cnsQ(t), wherein n=1,2 ..., N；
Radar-communication integration waveform final output signal is z (t)=p (t)+q (t).
The beneficial effects of the invention are as follows high-order 16QAM is modulated to combine with LFM radar pulse, wherein LFM signal conduct 16QAM signal carrier forms radar-communication integration waveform, improves frequency spectrum rate rate.Present invention could apply to radar communications Integrated technique field.
Detailed description of the invention
Fig. 1 radar-communication integration waveform realizes structure chart
Specific implementation method
In radar-communication integration technology, transmitter emits radar-communication integration signal, realizes radar and communication altogether Enjoy transmitter.Linear frequency modulation (LFM) pulse that radar generates realizes integrated Waveform Design as the carrier wave of signal of communication.? In various communication digital modulation modes, 16QAM is high order modulation, has the characteristics that the availability of frequency spectrum is high.
Input communications baseband signal sequence { aiLength be T, altogether include 4N bit, each bit ai=± 1, each ratio Special time width is Ta, wherein i=1,2 ..., 4N, and T=4NTa；Baseband sequence passes through bit map module, output two Road parallel symbol sequence { bnAnd { cn, every road symbol sebolic addressing includes N number of symbol, and each symbol is 4 kinds of values, respectively ± 1 He ± 3, each symbol time width is Tbc, wherein n=1,2 ..., N, and Tbc=4Ta。
Bit map module is per continuous 4 input bit { ai,ai+1,ai+2,ai+3, export 1 symbol bnWith 1 symbol cn, wherein n=1,2 ..., N, i=4 (n-1)+1；Input continuous 4 bit { ai,ai+1,ai+2,ai+3Do not sympathize with 16 kinds Condition, with output16 kinds of situations correspond；16 kinds of outputs are respectively
Two-way symbol sebolic addressing { the b of bit map module outputnAnd { cn, it is orthogonal with the two-way that local oscillator module generates respectively Carrier wave sI(t) and sQ(t) it is multiplied；Local oscillator generates in-phase branch carrier wave s firstI(t), sIIt (t) is linear frequency modulation (LFM) pulse, table It is shown as sI(t)=cos (2 π ft+ π μ t2), wherein f be LFM signal initial frequency, μ be LFM signal chirp rate, 0≤t of time≤ T；In-phase branch carrier wave sI(t) pass through pi/2 phase shift, generate quadrature branch carrier wave sQ(t), sQ(t) it is expressed as sQ(t)=sin (2 π ft+πμt2)；In symbol bnAnd cnDuration of existence (n-1) Tbc≤t<nTbc, the two-way output signal after multiplication be respectively p (t)= bnsI(t) and q (t)=cnsQ(t), wherein n=1,2 ..., N.
Radar-communication integration waveform final output signal is z (t)=p (t)+q (t).
The beneficial effects of the invention are as follows high-order 16QAM is modulated to combine with LFM radar pulse, wherein LFM signal conduct 16QAM signal carrier forms radar-communication integration waveform, improves frequency spectrum rate rate, can be realized high speed data transfer.This hair It is bright to can be applied to radar-communication integration technical field.

Claims (1)

1. a kind of radar-communication integration waveform design method, it is characterised in that:
Input communications baseband signal sequence { aiLength be T, altogether include 4N bit, each bit ai=± 1, when each bit Between width be Ta, wherein i=1,2 ..., 4N, and T=4NTa；Baseband sequence passes through bit map module, and output two-way is simultaneously Row symbol sebolic addressing { bnAnd { cn, every road symbol sebolic addressing include N number of symbol, each symbol be 4 kinds of values, respectively ± 1 and ± 3, Each symbol time width is Tbc, wherein n=1,2 ..., N, and Tbc=4Ta；
Bit map module is per continuous 4 input bit { ai,ai+1,ai+2,ai+3, export 1 symbol bnWith 1 symbol cn, Middle n=1,2 ..., N, i=4 (n-1)+1；Input continuous 4 bit { ai,ai+1,ai+2,ai+3There are 16 kinds of different situations, with Output16 kinds of situations correspond；16 kinds of outputs are respectively
Two-way symbol sebolic addressing { the b of bit map module outputnAnd { cn, the two-way quadrature carrier generated respectively with local oscillator module SI (t) and sQ(t) it is multiplied；Local oscillator generates in-phase branch carrier wave sI (t), s firstI(t) it is linear frequency modulation (LFM) pulse, is expressed as sI(t)=cos (2 π ft+ π μ t2), wherein f is LFM signal initial frequency, and μ is LFM signal chirp rate, 0≤t of time≤T；Together Phase branch carrier wave sI(t) pass through pi/2 phase shift, generate quadrature branch carrier wave sQ(t), sQ(t) it is expressed as sQ(t)=sin (2 π ft+ π μ t2)；In symbol bnAnd cnDuration of existence (n-1) Tbc≤t<nTbc, the two-way output signal after multiplication is respectively p (t)=bnsI(t) With q (t)=cnsQ(t), wherein n=1,2 ..., N；
Radar-communication integration waveform final output signal is z (t)=p (t)+q (t).
CN201810745684.6A 2018-07-09 2018-07-09 Radar communication integrated waveform design method Active CN108983155B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113067791A (en) * 2021-03-22 2021-07-02 电子科技大学 Information modulation and demodulation method based on phase and orthogonal signal combination
CN115267686A (en) * 2022-09-27 2022-11-01 烟台初心航空科技有限公司 Radar communication integrated modulation signal generation method with low peak-to-average ratio characteristic
US11774569B2 (en) 2020-08-07 2023-10-03 Aptiv Technologies Limited Object detection system with a side communication channel

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020003488A1 (en) * 2000-02-13 2002-01-10 Hexagon System Engineering Ltd. Vehicle communication network
CA2559049A1 (en) * 2004-03-16 2005-09-29 Symbol Technologies, Inc. Multi-resolution object location system and method
CN101102138A (en) * 2007-08-10 2008-01-09 重庆大学 A signal source generation device and method of array signal processing system
CN101908895A (en) * 2009-06-08 2010-12-08 泰纳股份公司 The method of receiver and received signal
US20110317793A1 (en) * 2010-06-23 2011-12-29 Raytheon Company Waveform generator in a multi-chip system
CN102355305A (en) * 2011-10-10 2012-02-15 北京邮电大学 Linear chirp z transform based frequency offset estimation algorithm in M-QAM (M-ary Quadrature Amplitude Modulation) coherent optical communication system
CN103501193A (en) * 2007-08-20 2014-01-08 瑞登有限责任公司 Method for compensating for MU-MAS and dynamically adapting to MU-MAS
CN103797739A (en) * 2011-06-24 2014-05-14 松下电器产业株式会社 Transmission device, transmission method, receiving device and receiving method
CN105765970A (en) * 2013-08-19 2016-07-13 Lg电子株式会社 Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
CN106027454A (en) * 2016-04-02 2016-10-12 上海大学 Frequency offset estimation method of QAM (Quadrature Amplitude Modulation) signal based on frequency compensation
US20180095161A1 (en) * 2016-07-27 2018-04-05 Raytheon Company System and method for concurrent communication of different signal types by a radar

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020003488A1 (en) * 2000-02-13 2002-01-10 Hexagon System Engineering Ltd. Vehicle communication network
CA2559049A1 (en) * 2004-03-16 2005-09-29 Symbol Technologies, Inc. Multi-resolution object location system and method
CN101102138A (en) * 2007-08-10 2008-01-09 重庆大学 A signal source generation device and method of array signal processing system
CN103501193A (en) * 2007-08-20 2014-01-08 瑞登有限责任公司 Method for compensating for MU-MAS and dynamically adapting to MU-MAS
CN101908895A (en) * 2009-06-08 2010-12-08 泰纳股份公司 The method of receiver and received signal
US20110317793A1 (en) * 2010-06-23 2011-12-29 Raytheon Company Waveform generator in a multi-chip system
CN103797739A (en) * 2011-06-24 2014-05-14 松下电器产业株式会社 Transmission device, transmission method, receiving device and receiving method
CN102355305A (en) * 2011-10-10 2012-02-15 北京邮电大学 Linear chirp z transform based frequency offset estimation algorithm in M-QAM (M-ary Quadrature Amplitude Modulation) coherent optical communication system
CN105765970A (en) * 2013-08-19 2016-07-13 Lg电子株式会社 Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
CN106027454A (en) * 2016-04-02 2016-10-12 上海大学 Frequency offset estimation method of QAM (Quadrature Amplitude Modulation) signal based on frequency compensation
US20180095161A1 (en) * 2016-07-27 2018-04-05 Raytheon Company System and method for concurrent communication of different signal types by a radar

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WANLI WANG等: ""A novel noise-insensitive chromatic dispersion estimation method based on fractional fourier transform of LFM signals"", 《IEEE PHOTONICS JOURNAL》 *
曾浩等: ""16QAM-LFM雷达通信一体化信号设计"", 《通信学报》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11774569B2 (en) 2020-08-07 2023-10-03 Aptiv Technologies Limited Object detection system with a side communication channel
CN113067791A (en) * 2021-03-22 2021-07-02 电子科技大学 Information modulation and demodulation method based on phase and orthogonal signal combination
CN113067791B (en) * 2021-03-22 2022-07-15 电子科技大学 Information modulation and demodulation method based on phase and orthogonal signal combination
CN115267686A (en) * 2022-09-27 2022-11-01 烟台初心航空科技有限公司 Radar communication integrated modulation signal generation method with low peak-to-average ratio characteristic

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