一種超分辨OFDM雷達(dá)通信一體化設(shè)計(jì)方法

劉永軍; 廖桂生; 楊志偉; 許京偉

doi:10.11999/JEIT150320

一種超分辨OFDM雷達(dá)通信一體化設(shè)計(jì)方法

doi: 10.11999/JEIT150320

基金項(xiàng)目:

國家自然科學(xué)基金(61231017)

計(jì)量
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2015-03-17
- 修回日期: 2015-11-03
- 刊出日期: 2016-02-19

A Super-resolution Design Method for Integration of OFDM Radar and Communication

Funds:

The National Natural Science Foundation of China (61231017)

摘要

摘要: 傳統(tǒng)OFDM雷達(dá)通常不考慮傳遞通信信息，該文設(shè)計(jì)出一種新的基于OFDM的雷達(dá)發(fā)射方式以實(shí)現(xiàn)雷達(dá)和通信的一體化，并提出一種基于通信信息補(bǔ)償?shù)哪繕?biāo)距離速度聯(lián)合高分辨估計(jì)方法。所設(shè)計(jì)的雷達(dá)發(fā)射方式，采用脈沖發(fā)射，每個(gè)脈沖由多個(gè)OFDM符號(hào)構(gòu)成，在脈沖內(nèi)實(shí)現(xiàn)通信功能；在雷達(dá)相干處理時(shí)間內(nèi)，對(duì)回波進(jìn)行通信信息補(bǔ)償和解相干處理后，采用子空間投影方法實(shí)現(xiàn)對(duì)目標(biāo)距離和速度的聯(lián)合超分辨估計(jì)。理論分析和仿真實(shí)驗(yàn)表明，所提方法能夠在保證通信功能的條件下，可有效實(shí)現(xiàn)雷達(dá)目標(biāo)距離和速度的聯(lián)合超分辨估計(jì)。
- 雷達(dá)通信一體化 /
- 正交頻分復(fù)用 /
- 距離速度聯(lián)合估計(jì) /
- 超分辨
Abstract: The traditional OFDM radar is usually without regard to transmit communication information. A new radar transmitting pattern based on OFDM is designed to realize the integration of radar and communication. And a new method based on compensated communication information is proposed to achieve joint high-resolution estimation of targets ranges and velocities. In the designed radar transmitting pattern, the radar transmits pulse consisting of multi-OFDM symbols and the communication function is realized within the pulse. During coherent processing interval, the subspace projection method is used to obtain the joint super-resolution estimation of ranges and velocities of targets after the echo data is compensated using communication information and induced non-coherent. Theoretical analysis and simulation results show that the proposed method can obtain the joint super-resolution estimation of targets distances and velocities under the condition of guaranteeing the communication function.
- Integration of radar and communication /
- OFDM /
- Joint estimation of range and velocity /
- Super- resolution

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