Multitarget detection algorithm for automotive FMCW radar

Eugin Hyun; Woo-Jin Oh; Jong-Hun Lee

doi:10.1117/12.918537

3 May 2012 Multitarget detection algorithm for automotive FMCW radar

Eugin Hyun, Woo-Jin Oh, Jong-Hun Lee

Proceedings Volume 8361, Radar Sensor Technology XVI; 83611E (2012) https://doi.org/10.1117/12.918537
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Today, 77 GHz FMCW (Frequency Modulation Continuous Wave) radar has strong advantages of range and velocity detection for automotive applications. However, FMCW radar brings out ghost targets and missed targets in multi-target situations. In this paper, in order to resolve these limitations, we propose an effective pairing algorithm, which consists of two steps. In the proposed method, a waveform with different slopes in two periods is used. In the 1st pairing processing, all combinations of range and velocity are obtained in each of two wave periods. In the 2nd pairing step, using the results of the 1st pairing processing, fine range and velocity are detected. In that case, we propose the range-velocity windowing technique in order to compensate for the non-ideal beat-frequency characteristic that arises due to the non-linearity of the RF module. Based on experimental results, the performance of the proposed algorithm is improved compared with that of the typical method.

Citation Download Citation

Eugin Hyun, Woo-Jin Oh, and Jong-Hun Lee "Multitarget detection algorithm for automotive FMCW radar", Proc. SPIE 8361, Radar Sensor Technology XVI, 83611E (3 May 2012); https://doi.org/10.1117/12.918537

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