发明名称 |
NARROW-BAND INTERFERENCE REJECTING SPREAD SPECTRUM RADIO SYSTEM AND METHOD |
摘要 |
A spread spectrum receiver and method having narrow-band interference rejection of narrow-band jamming signals using digital signal processing frequency domain techniques. The method performed in the receiver includes transforming the received signal to a frequency domain signal and identifying narrow-band interference components in the frequency domain signal; suppressing the identified narrow-band interference components by excising the identified narrow-band interference components from the frequency domain signal to produce an interference excised signal in the frequency domain, and storing in a memory frequencies corresponding to the identified narrow-band interference components; synchronizing a receiver code to a transmitter code in the frequency domain using the interference excised signal; generating coefficients for a time domain filter that includes notches at the frequencies corresponding to the excised narrow-band interference components and that jointly despreads and rejects narrow-band interference from the excised frequencies; applying the coefficients generated in the preceding step to the time domain filter; and despreading and filtering in real time in the time domain the received signal using the applied coefficients.
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申请公布号 |
WO0004657(A1) |
申请公布日期 |
2000.01.27 |
申请号 |
WO1999US14146 |
申请日期 |
1999.07.14 |
申请人 |
SANCONIX, INC.;ROUQUETTE, ROBERT, E. |
发明人 |
ROUQUETTE, ROBERT, E. |
分类号 |
H04B1/10;H04B1/707;(IPC1-7):H04B15/00;H04K1/00;H04L27/30;H04L7/00 |
主分类号 |
H04B1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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