【摘要】：監(jiān)測(cè)接收機(jī)是一種接收無(wú)線電信號(hào),能夠?qū)π盘?hào)的頻域特性和時(shí)域特性進(jìn)行處理的專業(yè)儀器。在廣播電視監(jiān)測(cè)行業(yè)中,監(jiān)測(cè)接收機(jī)的使用范圍非常的大。例如廣播發(fā)射機(jī)發(fā)射特性的測(cè)試以及干擾頻率的查找與分析,頻譜占用情況的收測(cè)等。虛擬儀器是以計(jì)算機(jī)為核心,配合相應(yīng)的基本儀器板塊硬件和操作控制軟件而組建成的,擁有圖形化操作界面的儀器設(shè)備。虛擬儀器的設(shè)備操作,數(shù)據(jù)的顯示和結(jié)果的分析,都是通過(guò)軟件開發(fā)平臺(tái)所開發(fā)虛擬儀器面板來(lái)完成的。傳統(tǒng)手動(dòng)測(cè)試監(jiān)測(cè)接收機(jī)的方法存在花費(fèi)時(shí)間長(zhǎng),消耗人力大的問(wèn)題。測(cè)量操作人員的技術(shù)能力水平,業(yè)務(wù)熟練程度,也有可能會(huì)對(duì)測(cè)量結(jié)果造成影響。本文針對(duì)這一問(wèn)題,采用虛擬儀器技術(shù),設(shè)計(jì)開發(fā)了監(jiān)測(cè)接收機(jī)自動(dòng)測(cè)試系統(tǒng)。這套系統(tǒng)能夠自動(dòng)完成對(duì)監(jiān)測(cè)接收機(jī)的指標(biāo)精度測(cè)量,測(cè)試數(shù)據(jù)的后期處理和生成測(cè)試報(bào)告,提高了監(jiān)測(cè)接收機(jī)測(cè)試工作的效率和可靠性。本文從如下幾個(gè)方面,展開了課題的相關(guān)研究:1.研究了自動(dòng)測(cè)試系統(tǒng)的發(fā)展現(xiàn)狀、結(jié)構(gòu)原理和關(guān)鍵技術(shù)。2.分析了系統(tǒng)組成和工作原理,根據(jù)測(cè)試工作的技術(shù)要求和所具備的儀器設(shè)備情況,確定了監(jiān)測(cè)接收機(jī)自動(dòng)測(cè)試系統(tǒng)的硬件組成和系統(tǒng)結(jié)構(gòu)。3.對(duì)自動(dòng)測(cè)試系統(tǒng)的軟件部分進(jìn)行了研究和設(shè)計(jì),對(duì)各功能模塊具體實(shí)現(xiàn)方式進(jìn)行了研究,對(duì)監(jiān)測(cè)接收機(jī)自動(dòng)測(cè)試系統(tǒng)進(jìn)行了程序編寫,并應(yīng)用誤差理論和測(cè)量不確定度理論對(duì)測(cè)試數(shù)據(jù)進(jìn)行了分析處理,并設(shè)計(jì)了測(cè)試報(bào)告模板。4.根據(jù)工作實(shí)際對(duì)測(cè)量不確定度評(píng)定過(guò)程進(jìn)行了改進(jìn),并應(yīng)用改進(jìn)的測(cè)量不確定度評(píng)定方法,對(duì)監(jiān)測(cè)接收機(jī)參數(shù)的測(cè)量結(jié)果進(jìn)行分析。
[Abstract]:The monitor receiver is a professional instrument which can process the frequency and time domain characteristics of signals. In the radio and television monitoring industry, the scope of use of monitoring receivers is very large. For example, the transmission characteristics of the broadcast transmitter, the search and analysis of the interference frequency, the acquisition and measurement of the spectrum occupation, etc. Virtual instrument is a kind of instrument with graphical operation interface, which is based on computer, combined with corresponding basic instrument block hardware and operation control software. The equipment operation, data display and result analysis of the virtual instrument are accomplished by the virtual instrument panel developed by the software development platform. The traditional method of manual testing and monitoring receiver has the problems of long time and large manpower consumption. The level of technical skills and operational proficiency of the measuring staff may also have an impact on the measurement results. In order to solve this problem, an automatic test system for monitoring receiver is designed and developed by using virtual instrument technology. The system can automatically measure the index precision of the monitoring receiver, process the test data and generate the test report automatically, and improve the efficiency and reliability of the testing work of the monitoring receiver. This paper, from the following several aspects, launched the related research of the subject: 1. The development status, structure principle and key technology of automatic test system are studied. The composition and working principle of the system are analyzed. According to the technical requirements of the testing work and the situation of the instruments and equipments, the hardware composition and the system structure of the automatic test system of the monitoring receiver are determined. The software part of the automatic test system is researched and designed, and the realization mode of each function module is studied, and the automatic test system of the monitoring receiver is programmed. The error theory and measurement uncertainty theory are used to analyze and process the test data, and the test report template .4. The evaluation process of measurement uncertainty is improved according to the actual work, and the measurement results of monitoring receiver parameters are analyzed by using the improved measurement uncertainty evaluation method.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN949.6;TN851;TP274

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