Abstract: This disclosure provides a radar device including a transmission module for sequentially transmitting two or more kinds of pulse signals having different pulse widths by a predetermined transmitting pattern, a memory module for storing a predetermined number of pulse reply data corresponding to each kind of the pulse signals, the predetermined number being number of transmissions of the kind of the pulse signals, a pulse integrating module for performing pulse integration of the pulse reply data stored in the memory module for each kind of the pulse signal, and an image generating module for generating a radar image using the results of the pulse integration.

Abstract: This disclosure provides a radar device including a transmission module for sequentially transmitting two or more kinds of pulse signals having different pulse widths by a predetermined transmitting pattern, a memory module for storing a predetermined number of pulse reply data corresponding to each kind of the pulse signals, the predetermined number being number of transmissions of the kind of the pulse signals, a pulse integrating module for performing pulse integration of the pulse reply data stored in the memory module for each kind of the pulse signal, and an image generating module for generating a radar image using the results of the pulse integration.

Abstract: The present invention relates to a signal processing apparatus for use in radars, which can detect a target from a receive signal by digital processing. An A-D converter samples the receive signal by a clock signal A, and quantizes the sampled value. A clock accelerator generates a clock signal B having a frequency which is N times a frequency of the clock signal A. A signal latch holds an output from the A-D converter for an N clock period of the clock signal B. A digital low-pass filter performs low-pass filtering processing with respect to an output from the signal latch with the clock signal B as an operating clock. As a result, an output from the digital low-pass filter includes a more approximate value of the maximum value in the receive signals. Therefore, it is possible to provide improved accuracy of the target detection by a target detector.

Abstract: A pulse chasing-type bistatic radar system is provided with a cluster of multiple narrow receive beams that covers the angle corresponding to the receive beam width required by the conventional pulse chasing mode, i.e., the required receive angle width, and scans in steps in accordance with the propagation of the transmit signals in the transmit beam. As the receive time-frame ends for the last narrow beam making up the cluster, it advances to a new position at the head of the cluster. Adopting this arrangement, the required number of receive beams can be reduced to the minimum.