雷達(dá)多通道接收機(jī)測試系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)

蒙 妍，張林讓，彭煒杰

(西安電子科技大學(xué) 雷達(dá)信號處理國防科技重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710071)

雷達(dá)多通道接收機(jī)測試系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)

蒙 妍，張林讓，彭煒杰

(西安電子科技大學(xué) 雷達(dá)信號處理國防科技重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710071)

傳統(tǒng)雷達(dá)接收機(jī)通道測試需要聯(lián)合多臺儀器，所需的成本較高且操作復(fù)雜，同時(shí)無法對通道特性進(jìn)行全面、準(zhǔn)確地分析。針對這些缺陷，設(shè)計(jì)了雷達(dá)多通道接收機(jī)測試系統(tǒng),并開發(fā)了基于VS2010的通道特性測試軟件，實(shí)現(xiàn)對接收機(jī)通道各項(xiàng)性能指標(biāo)的自動(dòng)檢測。文中簡述了系統(tǒng)的總體設(shè)計(jì)及各功能測試方法，并對軟件的界面和功能設(shè)計(jì)給出了具體實(shí)現(xiàn)過程。本系統(tǒng)具有操作便捷、測試準(zhǔn)確、穩(wěn)定性強(qiáng)等優(yōu)點(diǎn)，滿足對接收機(jī)性能的測試需求，為保障雷達(dá)系統(tǒng)的整體性能提供了必要測試手段。

雷達(dá)接收機(jī)；通道特性；軟件設(shè)計(jì)；VS2010

AbstractThe traditional measurement of radar receiver needs jointing many instruments together, resulting in high cost and complicated operation, meanwhile which can’t have a comprehensive and accurate analysis of the radar receiver channel performance. Aiming at these disadvantages, the radar multi-channel receiver test system and channel characteristics testing software based on VS2010 platform are designed and developed, achieving the automatic detection of radar receiver channels performance index. The system has the advantages of convenient operation, accurate testing and high stability, which meets the testing requirements of the receiver performance. This paper introduces the design of system hardware and software and implementation of testing parameters, providing the necessary test methods to guarantee the overall performance of the radar system.

Keywordsradar receiver; channel characteristics; software design;VS2010

雷達(dá)接收機(jī)通道的傳輸特性是指電路的幅頻特性、相頻特性、穩(wěn)定性等，通道性能影響雷達(dá)系統(tǒng)的可靠性和輸出信號的精度。通道電路中各支路器件的不一致以及周圍溫度等環(huán)境的變化均會(huì)導(dǎo)致通道間的幅相不一致，從而降低系統(tǒng)的性能。為了準(zhǔn)確評估通道電路性能以便對電路進(jìn)行校準(zhǔn)和修正來提高測試精度，需要檢測各通道之間幅度的一致性、相位一致性及通道間的隔離度等重要參數(shù)。常用通道特性測量儀器主要有掃頻儀、頻譜分析儀、網(wǎng)絡(luò)分析儀等。傳統(tǒng)掃頻儀功能單一、價(jià)格昂貴，不能打印頻率響應(yīng)曲線，且分析處理數(shù)據(jù)復(fù)雜，這些都將給用戶帶來諸多不便[1-2]。……