| 摘要: |
| 在高精度的连续波跟踪测量系统中,应答机是其测速定位信号传输通道的重要部分。本文分析了系统本振及应答机中采用的非相干本振的相位噪声所引起的测量误差,推导了测速定位误差的数学表达式。分析表明,非相干本振会使测量产生较大的误差。 |
| 关键词: 雷达 测量 速度 定位误差 应答机 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| Range rate and range errors of a coherent transporder |
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| Abstract: |
| The transponder is an important part of the transmission path of the
carricr and tone signal in the high accuracy CW tracking and maasuring system. This
paper analyses the measurement errors caused by the phase noise of the local oscillator
and the noncoherent local oscillator in the transponder. The mathematical formulae of
the range rate and range errors are deduced. The results indicate that the noncoherent
local oscillator will produce greater error. |
| Key words: Technique of Radar Measurement,Coherent Transporder,Analysis of Measurement error |
