[특허]Modular radar architecture film (FM/CW or pulse) for automobile collision avoidance applications

Modular radar architecture film (FM/CW or pulse) for automobile collision avoidance applications 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/02
출원번호	US-0327747 (1994-10-24)
발명자 / 주소	Algeo Jerry A. (Villa Park CA) Waineo Douglas K. (Placentia CA) Chen Pileih (Huntington Beach CA) Wong Sam H. (Yorba Linda CA) Linstrom Russell H. (Fullerton CA)
출원인 / 주소	Rockwell International Corporation (Seal Beach CA 02)
인용정보	피인용 횟수 : 41 인용 특허 : 0

초록 ▼

A modular radar system using both FM/CW and pulse waveforms for automotive collision avoidance applications. The radar system comprises a transmit and a receive antenna for transmitting and receiving, respectively, either one of FM/CW waveform and pulse waveform, a voltage-controlled oscillator (VCO) for generating a pre-set waveform for the transmit antenna, a modulator for modulating the pre-set waveform of the VCO, a switch for allowing the pre-set waveform from the VCO to be transmitted for a predetermined interval so as to generate the pulse waveform, a timing generator for causing the modulator to execute through a pre-set sequence of frequencies for either one of the pulse and FM/CW modes of waveforms with the timing generator controlling the transmission of one of the FM/CW waveform and pulse waveform, a balanced mixer for signal conversion In both FM/CW and pulse modes, an IF/Baseband receiver for amplifying the received FM/CW waveform and for IF-amplifying the received pulse waveform to generate an in-phase and a quadrature baseband output, a coherent oscillator for generating a coherent oscillating signal of a predetermined frequency to the receiver for centering the IF-amplified received pulse waveform at the predetermined frequency during pulse mode, and a frequency control loop for causing the VCO to maintain an offset by a predetermined frequency in the pulse mode between receive and transmit.

대표청구항 ▼

A modular radar system for automotive collision avoidance applications, comprising: a transmit antenna for transmitting one of FM/CW waveform and pulse waveform; a receive antenna for receiving one of FM/CW waveform and pulse waveform; a voltage-controlled oscillator (VCO) coupled to said transmit antenna for generating a predetermined waveform for said transmit antenna; a modulator coupled to said VCO for modulating said predetermined waveform of said VCO; a switch coupled between said VCO and said transmit antenna for allowing said predetermined waveform from said VCO to be transmitted for a predetermined interval so as to generate said pulse waveform; a timing generator disposed to cause said modulator to execute through a pre-set sequence of frequencies for either one of pulse and FM/CW modes of waveforms, said timing generator also coupled to said switch for controlling the transmission of one of said FM/CW waveform and pulse waveform; a balanced mixer coupled to said receive antenna for signal conversion, said balanced mixer operative in said FM/CW mode by converting a received FM/CW waveform to a baseband signal, said balanced mixer operative in said pulse mode by converting a received pulse waveform to an IF signal; an IF/Baseband receiver coupled to said balanced mixer for amplifying said received FM/CW waveform and for IF-amplifying said received pulse waveform, generating an in-phase and a quadrature baseband output; a coherent oscillator coupled to said IF/baseband receiver for generating a coherent oscillating signal of a predetermined frequency to said receiver for centering said IF-amplified received pulse waveform at said predetermined frequency during pulse mode; and a frequency control loop coupled between said IF/Baseband receiver and said modulator for causing said VCO to maintain an offset by a predetermined frequency in said pulse mode between receive and transmit.

이 특허를 인용한 특허 (41)

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Gunderson, Richard A., System and method for warning of potential collisions.
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Modular radar architecture film (FM/CW or pulse) for automobile collision avoidance applications 원문보기

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Modular radar architecture film (FM/CW or pulse) for automobile collision avoidance applications 원문보기

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