Digitol Mobile Raido Equipment RF Conformance Testing System Research And Design

With the rapid development of the national economy, People increased the product quality equipments on radio day after day, and expand demand of the types of the product more and more widely, Promote faster the development of the wireless communications market in some ways. The Digital mobile devices which are widely used in the government departments, public security departments, enterprise and large-scale activities, with a small network range, fast response, robust, highly confidential and other features, played a huge role in the national prevention and mitigation and other special application dispatching.Digital mobile radio industries covers the development, testing, production, sales, users and other links, each of industries have a huge driving force of development. DMR RF conformance testing, on one hand can promote the efficient use of radio spectrum resources; reduce the electromagnetic interference between communication equipments, and also maintenance airwaves order to ensure that radio equipments can work on their respective approved bands, in accordance with defined emission characteristics of a good work to ensure the normal functioning of various radio services; On the other hand, which played a huge role on the DMR product development and the quality control.This thesis committed to the studies of digital mobile radio RF conformance testing methodology, design of automatic test system for DMR and uncertainty analysis of the results. First, briefly describes the evolution, technology characteristics and market development prospects of DMR equipments. Others systematically discussed the test items, methods and significance of the RF conformance testing of DMR equipments. In terms of the. testing contents, the thesis not only brings forward several problems in DMR RF testing but also provides relevant solutions to these questions. Furthermore, considering about the testing requirements clearly and the current situation of the DMR industries, and according to the principle of scalability and compatibility of the automatic testing system, the thesis put forward the system design including hardware and software. Finally, the thesis conducts a brief analysis of uncertainty of RF conformance testing system of DMR equipments.