|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
Disclosed is a magnetron powered selectable pulsewidth radar system having minimum receiver bandwidth for each pulsewidth and automatic centering of the intermediate frequency at the true center of the input filter pass band. A frequency discriminator adjusts the local oscillator frequency after each transmitted pulse to cause the intermediate frequency on the return of that pulse to equal an internal adjustable frequency reference. The filtered IF noise signal between received pulses is compared to the internal reference by the frequency discriminator a...
A pulsed non-coherent radar system comprising: transmitter means for transmitting RF pulses towards a target, receiver means for receiving RF pulses reflected from a target and for generating an IF signal in response thereto, an electronically tunable frequency reference, a frequency discriminator coupled to the transmitter, the receiver, and the frequency reference for tuning the frequency reference to the frequency of the receiver thermal noise output and for maintaining the receiver IF at said noise frequency.