Journal of Systems Engineering and Electronics

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Direction estimation for two steady targets in monopulse radar

Zhenxing Lu1,2, Yunjie Li1,*, and Meiguo Gao1   

  1. 1. School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China;
    2. The 54th Research Institute, China Electronics Technology Group Corporation, Shijiazhuang 050081, China
  • Online:2015-02-13 Published:2010-01-03


Traditional monopulse radar cannot resolve two targets present in one range and Doppler cell by means of the monopulse ratio. A novel algorithm is proposed to estimate the directions of two steady targets with two pulses. The algorithm has a closedform expression and its variance is derived at high signal-to-noise ratios (SNRs). Furthermore, the pulse pair selection criterion and the estimation method with multiple pulses are given. Finally, some numerical results are shown to validate the proposed algorithm and the effect of slight target fluctuations is tested.

Key words: direction estimation, two unresolved targets, monopulse radar