No abstract

This paper presents a method to retrieve a twodimensional picture from the output of several noncoherent radar sensors. In the special case presented, three 24 GHz PN sensors, spaced so that they would fit into the bumper of a car, acquire distance and amplitude information, each sensor separately. From this information, the processing unit calculates the target locations within a 2D-field. The field of view in the presented case is 30 degrees, and the theoretical maximum range is 169 m.

This paper presents an IF-correlator with IF-input ports avoiding DC-offsets in the correlation signal path, as well as the need for a detector for the received signal. Often in PN-radar systems, the received signal is detected and then correlated with the reference signal at baseband. Due to DC passage through baseband correlators, only symmetric codes in DC-free paths provide a high dynamic range. The concept presented in this paper overcomes this shortcomings by correlating the signals at an intermediate frequency.