發(fā)布時間：2018-05-11 15:33

  本文選題：近程探測 + 雷達(dá)信號��； 參考：《西安電子科技大學(xué)》2014年碩士論文

【摘要】：毫米波雷達(dá)在民用和軍用近程探測上的使用越來越廣泛。在民用領(lǐng)域,主要有交通監(jiān)測、汽車防撞、自適應(yīng)巡航控制與小區(qū)周界安全防范等;在軍用領(lǐng)域,主要有各種智能引信、導(dǎo)彈導(dǎo)引頭及火力控制等。本文針對通用毫米波雷達(dá)信號處理問題,在中頻信號預(yù)處理和數(shù)字信號處理方面作了一定的研究和實踐。本文實現(xiàn)了一種可以用于近程探測的通用毫米波雷達(dá)中頻信號處理機(jī)。系統(tǒng)由兩部分組成,一部分是雷達(dá)接收機(jī)中頻信號的調(diào)理和數(shù)字化采樣,另一部分是全數(shù)字化雷達(dá)中頻信號的處理。該系統(tǒng)可以對特定目標(biāo)進(jìn)行比較精確的測距測速,并且根據(jù)相關(guān)信息發(fā)出報警或者控制信號。整個系統(tǒng)的數(shù)字信號處理部分集中在一片F(xiàn)PGA中,最大限度的實現(xiàn)了系統(tǒng)的小型化、集成化,并且提高了可靠性。本文完成了系統(tǒng)的設(shè)計和調(diào)試,包括了信號調(diào)理電路的設(shè)計、實現(xiàn)和調(diào)試,以及信號處理算法的設(shè)計和硬件處理電路實現(xiàn)。通過實測證明,本文實現(xiàn)的通用毫米波雷達(dá)中頻信號處理機(jī)符合設(shè)計目標(biāo),其各項功能和性能均滿足指標(biāo)要求,能夠滿足實際的應(yīng)用需求。最后對探測誤差進(jìn)行了分析,為進(jìn)一步優(yōu)化性能提供了基礎(chǔ)。
[Abstract]:Millimeter wave radar is more and more widely used in civil and military short-range detection. In the civil field, there are mainly traffic monitoring, vehicle collision prevention, adaptive cruise control and perimeter security prevention, etc. In the military field, there are mainly various intelligent fuze, missile seeker and fire control. Aiming at the problem of general millimeter-wave radar signal processing, this paper has done some research and practice in if signal preprocessing and digital signal processing. In this paper, a general MMW radar if signal processor can be used for short range detection. The system consists of two parts, one is the if signal conditioning and digital sampling of radar receiver, the other is the processing of full digital radar if signal. The system can accurately measure the range and velocity of a specific target and send out alarm or control signals according to the relevant information. The digital signal processing part of the whole system is concentrated in a piece of FPGA, which realizes the miniaturization and integration of the system to the maximum extent, and improves the reliability. This paper completes the design and debugging of the system, including the design, realization and debugging of the signal conditioning circuit, the design of the signal processing algorithm and the realization of the hardware processing circuit. It is proved that the universal MMW radar intermediate frequency signal processor realized in this paper accords with the design goal, and its functions and performances meet the requirements of the index and can meet the practical application requirements. Finally, the detection error is analyzed, which provides a basis for further optimization of performance.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN791;TN957.51

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 肖雷;;毫米波雷達(dá)的發(fā)展?fàn)顩r及其應(yīng)用[J];集成電路通訊;2007年02期

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本文編號：1874538