发明名称 |
Frequency feedback linearizer |
摘要 |
Range resolution in an FMCW radar system is achieved by providing a periodic linear frequency sweep. The present invention assures the linearity of this sweep by using a negative feedback circuit which includes means for obtaining 16 sequential instantaneous frequency versus time slope measurements during each sweep cycle, generating a set of 16 sequential error signals and a corresponding set of correction voltages, and applying these correction voltages to the sweep drive voltage used to drive the voltage controlled oscillator that generates the frequency swept output signal.
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申请公布号 |
US5172123(A) |
申请公布日期 |
1992.12.15 |
申请号 |
US19850696236 |
申请日期 |
1985.01.29 |
申请人 |
HERCULES DEFENSE ELECTRONICS, INC. |
发明人 |
JOHNSON, RICHARD W. |
分类号 |
G01S7/40;G01S13/34;H03B23/00;H03C3/08 |
主分类号 |
G01S7/40 |
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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