MOVING MULTI TARGET DETECTION USING COSTAS SIGNAL

In modern times, radar is used in a wide variety of applications including defense, air traffic control, meteorology, and even mapping. Radio Detection and Ranging (RADAR) involves the interpretation of a signal to determine characteristics of targets. With the unavoidable presence of various types of interference, signal processing is naturally an important part of any radar system. In this paper, we used a series of 8 bit costas sequence [2], each pulse having a length of 5 microseconds. The interpulse period was 200 microseconds and the radar return receive window started 20 microseconds after pulse transmission and ended 170 microseconds later. The radar system sampling rate and carrier frequency were 10MHz (2x over sampling) and 5GHz respectively. The noise was Gaussian and had a standard deviation of 2 relative to the signal amplitude. With these parameters detectable targets lay in between 3.7 km to 29.0 km away, and moved with a speed under 53 m/s.