Millimeterwave Radar High-Resolution Imaging via OFDM Waveforms
A novel combination of millimeterwave linearly frequency modulated (LFM) technology and new radar imaging techniques can provide a good high-resolution imaging sensor that can be inboard in unmanned vehicles, in which stringent limitations of size, weight and power consumption are required. This paper presents an approach of multiple transmission and multiple reception in elevation for vehicle-borne millimeterwave radar high-resolution imaging. This radar employs orthogonal frequency diversity modulated (OFDM)-LFM waveforms, so as to obtain a high-resolution imagery over a wide swath coverage. The system concepts, geometry relations and signal models are provided. Computer simulation examples are also performed. Additionally, the generation of the OFDM waveforms with parallel direct digital synthesizer (DDS)-driven phase locked loop (PLL) synthesizer is discussed, and the block diagram of the synthesizer is provided.
Waveform diversity orthogonal frequency diversity modulation (OFDM) radar imaging millimeterwave radar waveform generator.
Wen-Qin Wang Jingye Cai
Sch.of Comm.& Info.Eng., UESTC, Chengdu Henan Key Lab.of Coal Mine Methane and Fire Prevention, Hena School of Communication and Information Engineering University of Electronic Science and Technology
国际会议
2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)
大连
英文
2193-2196
2010-07-05（万方平台首次上网日期，不代表论文的发表时间）