tsemi测量系统的信号处理策略

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412) Pub Date : 2003-05-20 DOI:10.1109/IMTC.2003.1208272

F. Krug, T. Hermann, P. Russer

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引用次数: 34

摘要

一套低成本的电磁兼容性预遵从性测试装置对于降低任何电气设备的开发成本至关重要。本文讨论了宽带时域初步柔度测量技术应用于各类电磁干扰的优点。电磁干扰测量的数字信号处理允许实时模拟传统模拟设备的各种模式，例如，峰值，平均值，均方根和准峰值检测器模式。由于时域技术允许并行处理整个振幅谱，因此测量时间可以减少至少一个数量级。给出了时域电磁干扰(TDEMI)系统对传导和辐射发射的符合性测量结果。TDEMI系统的实时带宽为1.5 GHz。讨论了非平稳信号和单事件的测量技术。

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Signal processing strategies with the tdemi measurement system

A low-cost electromagnetic compatibility precompliance test-set is essential to reduce the development costs of any electrical device. In this paper we discuss the advantages of broadband time-domain preliminary compliance measurement techniques applied to all types of electromagnetic interferences. The digital signal processing of electromagnetic interference measurements allows emulating in real-time the various modes of conventional analogous equipment, e.g., peak, average, root mean square, and quasi-peak detector mode. Since time-domain techniques allow processing the whole amplitude spectrum in parallel, the measurement time may be reduced by at least one order of magnitude. Compliance measurement results for conducted and radiated emissions obtained with the time-domain electromagnetic interference (TDEMI) system are shown. The TDEMI system has a real-time bandwidth of 1.5 GHz. Measurement techniques for nonstationary signals and single events are discussed.

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Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412)

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