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| Research on Method of Selecting the Matched Filter in EVM Measurement |
| SHEN Xiao-qing,YU Qing-hua,YANG yang,QIU bin,XIA wei |
| China Satellite Maritime Tracking and Control Department, Jiangyin, Jiangsu 214431, China |
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Abstract Based on the relationship between matched filter and BER and EVM, using “traversal method”,an engineering approximation method is proposed to search the best measuring filter, which making the EVM measurement in better accuracy for cases of unawareness of filter configuration or specialized filter in equipment under testing. Experiments show that the method is practical and effective. When there is a matched filter in the measuring instrument, the probability of finding the matching filter is 100%. When there is no matching filter in the measuring instrument, the “traversal method” can find the best measurement filter under limited conditions.
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Received: 15 August 2019
Published: 29 June 2020
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2020, Vol. 41 
