Patent ID: 8391344

Claim:
A transceiving device of a pulse signal, comprising: a transmission signal generating module for generating a transmission signal that is frequency-modulated by a predetermined frequency sweep width; a transceiver module for transmitting a pulse signal having substantially the same waveform as a waveform of the transmission signal and receiving an echo signal corresponding to the transmission signal from a detection range; and a pulse-compression filter for pulse-compressing the echo signal received by the transceiver module, said pulse-compression filter being a mismatched filter; and said pulse compression filter having an input/output characteristic such that, in response to receiving an input signal having substantially the same waveform as the waveform of the transmission signal, said pulse compression filter performs pulse compression with a window function having a shape such that a phase spectrum of an output signal corresponding to said received input signal is a linear function of frequency and an amplitude spectrum of the output signal only has a frequency component of a frequency band with which a frequency sweep is carried out; and wherein a dynamic range of the window function shape is determined based on a desired level of range side lobes and a width of a main lobe in a time range of the output signal.