Feasibility analysis of non-orthogonal waveforms for multiple input multiple output passive radar application

The Journal of Engineering

Tongdong Dou¹  Tong Li¹  Qing Wang¹  Weifeng Zhu² 

[1] School of Electrical and Information Engineering, Tianjin University;Shanghai Jiao Tong University;

关键词: mimo radar;    radar signal processing;    radio links;    radio receivers;    mimo communication;    multi-access systems;    orthogonal codes;    interference suppression;    radiofrequency interference;    code division multiple access;    error statistics;    passive radar;    nonorthogonal waveform;    multiple input multiple output passive radar application;    new nonorthogonal multiple access technology;    higher spectrum efficiency;    massive terminal access;    bit error rate performance;    spectrum congestion problem;    5g nonorthogonal signal;    potential passive radar illumination source;    orthogonal multiple input multiple output radar waveform design;    sparse code multiple access;    passive radar illumination sources;    nonorthogonal scma signals;    orthogonal code division multiple access signals;   

DOI  :  10.1049/joe.2019.0582

来源: DOAJ

【 摘 要 】

New non-orthogonal multiple access technology is proposed with the development of 5G, which is expected to support higher spectrum efficiency and massive terminal access, it enables the communication system to achieve better bit error rate performance and alleviate the spectrum congestion problem effectively under limited resources. With the design of spectrum sharing for radar and communication getting more attention, 5G non-orthogonal signal has become potential passive radar illumination source. In this article, an orthogonal multiple input multiple output (MIMO) radar waveform design metric by minimising the integration sidelobe level, is introduced firstly. Then based on sparse code multiple access (SCMA) technology, the non-orthogonal waveform is designed as the passive radar illumination sources. The distance and Doppler resolution of non-orthogonal waveform are evaluated by a more generalised MIMO ambiguity function. Simulation results demonstrate that non-orthogonal SCMA signals have competitive performance with orthogonal code division multiple access signals.

【 授权许可】

Unknown