Patent ID: 7656344
Filing Date: 2010-02-02
Classification: G01S

Abstract:
1. A target detecting apparatus, comprising: receiving means of receiving an echo of a transmitted pulse in a first range cell after elapse of a first time from a pulse transmission to output a first signal based on the received echo and receiving an echo of a transmitted pulse in a second range cell after elapse of a second time from the pulse transmission, the second time being different from the first time, to output a second signal based on the received echo; signal integrating means of integrating a first number of the first signals output from the receiving means to output the result of integration as a first range cell integrated signal and integrating a second number of the second signals, the second number being different from the first number, to output the result of integration as a second range cell integrated signal, wherein the signal integrating means sets the second number larger than the first number when the second time elapses after the first time; target detecting means of detecting a target based on the first range cell integrated signal and the second range cell integrated signal; and pulse transmission means of transmitting a pulse of a wide-angle beam, wherein the receiving means includes an array antenna including a plurality of element antennas to cause the element antennas of the array antenna to receive the echoes of the transmitted pulse in the first range cell and the second range cell over a plurality of pulse reception intervals.