Michael Lee, Sangjun An, S. M. Lee, Sangwook Suh, K. Lim, J. Laskar
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Circuit level analysis of analog signal processing based MIMO radar system
Conventional digital signal processing (DSP) based systems, when expanded into a multi input multi output (MIMO) system, suffer from increase of power consumption and computational burden. In this paper, an analog based MIMO radar system is introduced. The proposed system uses a combination of wavelets as its pulse at transmitters. Using the property of wavelets being orthogonal in time, our proposed system achieves waveform diversity. Implementation of a MIMO radar system based on analog circuitry results in significant decrease in power consumption of the system. This was verified by comparing systems with similar performance and estimating their power consumption. While our proposed system consumed 422.2 mW, a DSP-ASIC MIMO radar system consumed 2621.6 mW, a conventional DSP-ASIC single input single output (SISO) radar system consumed 1767 mW, and a conventional DSP-FPGA SISO radar system consumed 4158 mW.
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