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A Signal Demodulation Algorithm Based on Hilbert Transform and Its Application in Aircraft Power Supply System Characteristic Parameters Testing |
LI Xiao-zhou,JIN Hai-bin |
Beijing Oriental Institute of Measurement & Test, Beijing 100086, China |
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Abstract In the test of aircraft power supply systems characteristic parameters, voltage modulation amplitude, frequency modulation amplitude and distortion spectrum are important parameters. A digital demodulation algorithm based on Hilbert transform was introduced to test these parameters, which can demodulate the sampling signal to get the modulation waveform. A characteristic parameters testing system for aircraft power supply was built to sample and analyze the aircraft power supply signal. An experiment was designed to prove that the testing system can meet the requirements of aircraft power supply testing.
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[1]刘妍. 飞机变频交流供电特性参数测试技术研究[D].南京:南京航空航天大学,2013.
[2]GJB 181B—2012 飞机供电特性[S]. 2012.
[3]GJB 5189—2003 飞机供电特性参数测试方法[S]. 2003.
[4]Kaplun D I, Gulvanskiy V V, Kanatov I I, et al. Development and study of demodulation techniques for frequency-modulated signals[C]//IEEE. 2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus). St. Petersburg, 2017: 678-681.
[5]滕召胜,罗志坤,高云鹏,等.基于虚拟仪器的平方检测法电压闪变测量实现[J].仪器仪表学报,2011,32(8):1803-1809.
Teng Z S, Luo Z K, Gao Y P, et al.Implementation of voltage flicker measurement withsquare-detection method based on virtual instrument[J]. Chinese Journal of Scientific Instrument,2011,32(8):1803-1809.
[6]陈鹏,陈晓宁,黄立洋,等.一种基于局部均值分量法的电压波动包络线检测方法[J].电气应用,2016,35(3):56-60.
Chen P, Chen X N, Huang L Y, et al. Avoltage fluctuation envelope testing method based on local mean decomposition[J]. Electrotechnical Application, 2016,35(3):56-60.
[7]梁志国,孙璟宇.调频信号的数字化解调[J].测试技术学报,2005,19(2):190-194.
Liang Z G, Sun J Y. A Precise Digitizing Demodulation Method of the FM Signal[J]. Journalof Test and Measurement Technology, 2005,19(2):190-194.
[8]梁志国.用Hilbert变换进行FM信号解调的一种数据处理方式[J].计量学报,2016,37(6):644-648.
Liang Z G. The data processing about FM signal demodulation using Hilbert transformation[J].Acta Metrologica Sinica, 2016,37(6):644-648.
[9]王光荣.基于Hilbert变换的信号包络提取方法研究[J].中国科技信息,2012,(1):87-88.
Wang G R. The Research of Envelope Demodulation Analysis Methods on Noise and Vibration[J]. China Science and Technology Information,2012,(1):87-88.
[10]Munir B S, Reza M, Trisetyarso A, et al. Feature extraction using Hilbert-Huang transform for power system oscillation measurements[C]// 2017 4th International Conference on Information Technology, Computer, and Electrical Engineering (ICITACEE). Semarang, Indonesia, 2017: 93-96.
[11]Budovsky I, Hagen T. Development of a Precision Resistive Voltage Divider for Frequencies Up to 100kHz[C]// Conference on Precision Electromagnetic Measurements 2010.Daejeon,South Korea,2010:195-196.
[12]Budovsky I, Hagen T. A precision buffer amplifier for low-frequency metrology applications[C]// Conference on Precision Electromagnetic Measurements 2010. Daejeon, South Korea, 2010: 28-29. |
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