发明名称 FMCW RADAR AND NEAR RANGE CLUTTER SIGNAL SUPPRESSION METHOD OF THE FMCW RADAR
摘要 PURPOSE: A FMCW radar and an attenuating method for a near distance clutter signal of the FMCW radar are provided to expand a dynamic area of a receiver and to improve a signal to noise ratio. CONSTITUTION: A FMCW radar and an attenuating method for a near distance clutter signal of the FMCW radar comprise the following: A RF transmitter(20) is delivered a signal from a signal generator of a frequency generator(30) and transmits the same to a transmitting antenna. The transmitting antenna transmits an RF detection signal to the outside. An RF receiver(10) RF-converts the reflected signal returning from a target and produces the same to a mixer(35). The mixer mixes the local signal separated from the frequency generator and the reflected signal from the RF receiver and produces an intermediate frequency. An intermediate frequency signal amplifier lowers or amplifies the frequency of the Doppler reflected signal and provides the same to a signal processor(70). The signal processor converts the analog signal passed through the intermediate frequency signal expander to the digital signal and extracts the characteristics of the detected target. [Reference numerals] (10) RF receiver; (20) RF transmitter; (30) Frequency generator; (40) Low band pass filter; (50) Active band stop filter; (60) Gain amplifier; (70) Signal processor; (71) A/D converter; (AA) Intermediate frequency signal amplifier; (BB) Reception signal generator; (CC) Transmission signal generator
申请公布号 KR101224861(B1) 申请公布日期 2013.01.22
申请号 KR20120084107 申请日期 2012.07.31
申请人 AGENCY FOR DEFENSE DEVELOPMENT 发明人 CHO, BYUNG LAE;LEE, JONG MIN;SUN, SUN GU;LEE, JUNG SOO;HA, SUNG JAE
分类号 G01S13/34 主分类号 G01S13/34
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