基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計

夏鐵騎; 姒強; 向敬成

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基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計

夏鐵騎, 姒強, 向敬成

文章導航 > 電子與信息學報 > 2005 > 27(3): 492-494

夏鐵騎, 姒強, 向敬成. 基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計[J]. 電子與信息學報, 2005, 27(3): 492-494.

引用本文:

夏鐵騎, 姒強, 向敬成. 基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計[J]. 電子與信息學報, 2005, 27(3): 492-494.

Xia Tie-qi, Si Qiang, Xiang jing-cheng. Wide Bandwidth LFM Signal Generator Based on Double Frequency Chains[J]. Journal of Electronics & Information Technology, 2005, 27(3): 492-494.

Citation:

Xia Tie-qi, Si Qiang, Xiang jing-cheng. Wide Bandwidth LFM Signal Generator Based on Double Frequency Chains[J]. Journal of Electronics & Information Technology, 2005, 27(3): 492-494.

夏鐵騎, 姒強, 向敬成. 基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計[J]. 電子與信息學報, 2005, 27(3): 492-494.

引用本文:

夏鐵騎, 姒強, 向敬成. 基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計[J]. 電子與信息學報, 2005, 27(3): 492-494.

Xia Tie-qi, Si Qiang, Xiang jing-cheng. Wide Bandwidth LFM Signal Generator Based on Double Frequency Chains[J]. Journal of Electronics & Information Technology, 2005, 27(3): 492-494.

Citation:

Xia Tie-qi, Si Qiang, Xiang jing-cheng. Wide Bandwidth LFM Signal Generator Based on Double Frequency Chains[J]. Journal of Electronics & Information Technology, 2005, 27(3): 492-494.

基于倍頻鏈的寬帶LFM信號產(chǎn)生器設計

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出版歷程
- 收稿日期: 2003-11-13
- 修回日期: 2004-04-08
- 刊出日期: 2005-03-19

Wide Bandwidth LFM Signal Generator Based on Double Frequency Chains

摘要

摘要: 該文的研究工作以線性調(diào)頻(LFM)脈沖壓縮信號為基礎,采用直接巾頻產(chǎn)生技術加倍頻鏈技術設計實現(xiàn)了中心頻率1200MHz,帶寬200 MHz和66.7 MHz的雙分辨力LFM雷達脈沖壓縮波形產(chǎn)生系統(tǒng)。實測結果表明,該系統(tǒng)產(chǎn)生信號的帶外雜散、諧波優(yōu)于-55dB,帶內(nèi)起伏小于2dB,脈沖壓縮主副比達到30dB以上。系統(tǒng)穩(wěn)定,性能指標達到實用系統(tǒng)的總體要求。
- 線性調(diào)頻; 倍頻鏈; 雙分辨力; 直接中頻產(chǎn)生
Abstract: Based on Linear Frequency Modulated (LFM) pulse compression signal, a system which has two resolution with 1200MHz carrier and 200MHz and 66.7MHz bandwidth, is designed and implemented. According to the measurement results, the spurious signals involved in the system output as well as the harmonic signals are lower than - 55dB, the ripple in the band is below 2dB, and pulse compression Ratio of Mainlobe to Sidelobe (RMS) reaches 30dB. The system is quite stable and its performance meets the requirement of actual application.