發(fā)布時間：2018-01-23 11:57

  本文關鍵詞： 自動測試系統(tǒng) 功率容限 多載波 射頻功率放大器 VISA　出處：《南京航空航天大學》2014年碩士論文　論文類型：學位論文

【摘要】：近年來國內(nèi)通信系統(tǒng)保持著持續(xù)、快速的發(fā)展,其網(wǎng)絡規(guī)模、用戶數(shù)量、業(yè)務總量都呈現(xiàn)出飛躍式的增長。無論是新制式通信方案的提出,還是多載波技術在現(xiàn)有通信網(wǎng)絡中的普及,都對整個通信系統(tǒng)中的各組成部分提出了更高的要求,而無源器件作為其中不可或缺的重要組成部分也越來越受到人們的關注。在多信道的無線發(fā)射、接收系統(tǒng)中,大量射頻能量的傳輸使得無源器件承受的功率負荷越來越大,而當器件功率承受能力不足時,極易對整個通信系統(tǒng)產(chǎn)生巨大的干擾,所以器件的功率容限成為了直接影響系統(tǒng)工作性能的至關重要的因素之一。為了保障系統(tǒng)的通信能力和質(zhì)量,減少由器件所帶來的干擾,對無源器件的功率容限測試就顯得尤為重要。本文從實際需求出發(fā),首先介紹了自動測試系統(tǒng)的概念與設計要求,其次對通信系統(tǒng)中無源器件功率容限對網(wǎng)絡質(zhì)量的影響進行了分析,基于此設計了一套性能完備的功率容限自動測試系統(tǒng)。該系統(tǒng)由測試硬件平臺、PC機和測試軟件平臺等組成,系統(tǒng)中以PC機作為主控制單元,通過GPIB和LAN總線集成其他相關儀器設備,并實現(xiàn)儀器的程控、相關測試信號的生成、測試數(shù)據(jù)的處理、存儲與反饋等功能。針對測試中使用的測試硬件平臺,給出了完整、詳細的設計與實現(xiàn)方案。在整個測試系統(tǒng)軟件平臺的搭建時,選用C++提供的MFC完成前端開發(fā),并借助SQL Server搭建系統(tǒng)的后臺數(shù)據(jù)庫。整個測試系統(tǒng)采用模塊化的設計思路,為用戶提供了友好的人機交互。在保證測試功能完整的基礎上,整體設計以簡潔與操作簡便為原則。測試的全部過程在自動測試軟件的控制下實現(xiàn)了程序化、自動化與規(guī)范化。本文設計并實現(xiàn)的自動測試系統(tǒng)能夠很好的完成無源器件在不同狀態(tài)下的功率容限測試工作。該系統(tǒng)省去了傳統(tǒng)測試過程中的大量人工操作,在提高了測量效率的同時還具備較高的測試精度和較好的擴展性。測試結果表明,系統(tǒng)工作性能穩(wěn)定,實現(xiàn)了無源器件功率容限的自動化測試,完全滿足設計需求。
[Abstract]:In recent years, the domestic communication system has maintained a sustained and rapid development, its network size, the number of users, the total volume of services are showing leapfrog growth, regardless of the proposed new communication scheme. Or the popularity of multicarrier technology in the existing communication network, all of the components of the entire communication system put forward higher requirements. As an indispensable part of passive devices, passive devices have attracted more and more attention in multi-channel wireless transmission and receiving systems. The transmission of a large amount of RF energy makes the passive devices bear more and more power load. However, when the power capacity of the devices is insufficient, it is easy to cause huge interference to the whole communication system. Therefore, the power tolerance of the device has become one of the most important factors that directly affect the performance of the system. In order to ensure the communication ability and quality of the system, the interference caused by the device is reduced. It is very important to test the power tolerance of passive devices. In this paper, the concept and design requirements of automatic test system are introduced based on the actual requirements. Secondly, the influence of passive device power tolerance on network quality is analyzed. Based on this, an automatic power tolerance test system with complete performance is designed. PC and test software platform are composed of PC as the main control unit, and other related instruments are integrated by GPIB and LAN bus, and the program control of the instrument is realized. Related test signal generation, test data processing, storage and feedback functions. For the test hardware platform used in the test, given the integrity. Detailed design and implementation scheme. In the whole testing system software platform construction, choose C to provide the MFC to complete the front-end development. And with the help of SQL Server to build the background database of the system. The whole test system adopts the modular design idea, provides friendly man-machine interaction for users, and on the basis of ensuring the integrity of the testing function. The whole design is simple and easy to operate. The whole process of test is programmed under the control of automatic test software. Automation and standardization. The automatic test system designed and implemented in this paper can accomplish the power tolerance testing of passive devices in different states. This system eliminates a lot of manual operation in the traditional testing process. The test results show that the system has stable performance and realizes the automatic test of passive device power tolerance. Fully meet the design requirements.
【學位授予單位】：南京航空航天大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM933.3

【參考文獻】

相關期刊論文 前1條

1 劉龍;王偉平;劉遠飛;;自動測試系統(tǒng)的發(fā)展現(xiàn)狀及前景[J];飛機設計;2007年04期

相關碩士學位論文 前1條

1 沈莉梅;無源互調(diào)測試儀的射頻功率放大器設計[D];浙江工業(yè)大學;2012年

，

本文編號：1457484