Principle and Performance Analysis of Truncation Pulse Compression in the Decrease of the Radar Blind Zone

Abstract

In order to improve the range resolution and detection distance of the radar, the method called pulse compression (PC) is commonly used, which not only ensures enough signal energy for the remote detection, but also makes the time-bandwidth products much greater than 1. But if time-width of the pulse signal is increased, as a result the blind zone is also increased inevitably. To solve the issue, we proposed a method named truncation pulse compression, and its principle and performance are analyzed in the paper. This novel method is different from those traditional methods is that it transmits short pulse to reduce blind zone and then combine modulated pulses. It can not only decrease the blind zone, but also can reduce the complexity of radar system. We have performed some simulation experiments to verify the principle of this method, and the simulation results showed that the truncated compressed pulse can effectively solve the problem of the increase of blind zone caused by the pulse compression and reduce the radar system complexity