摘要
Many conventional methods of testing strong and pulsed electromagnetic fields,the ones used in radars for example,had deficiencies due to the difficulty in obtaining simultaneous information about the electromagnetic field's peak both in the time domain and in the frequency domain.With regard to this problem,after analyzing the time-domain and the frequency-domain characteristics of radar pulsed signals,we propose a new time-frequency combination test method based on the correction of the test parameters,as well as its correction method at different bandwidths.The test method is applied in a quick test of a high-power pulsed radar signal,and the corrected results have error less than 1 dB in both the time domain and the frequency domain,which indicates that the proposed time-frequency combined method is effective in testing strong and pulsed electromagnetic fields.
Many conventional methods of testing strong and pulsed electromagnetic fields, the ones used in radars for example, had defi- ciencies due to the difficulty in obtaining simultaneous information about the electromagnetic field＇s peak both in the time domain and in the frequency domain. With regard to this problem, after analyzing the time-domain and the frequency-domain characteristics of radar pulsed signals, we propose a new time-frequency combination test method based on the correction of the test parameters, as well as its cor- rection method at different bandwidths. The test method is applied in a quick test of a high-power pulsed radar signal, and the corrected results have error less than 1 dB in both the time domain and the frequency domain, which indicates that the proposed time-frequency com- bined method is effective in testing strong and pulsed electromagnetic fields.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2013年第10期2471-2476,共6页
High Voltage Engineering
基金
supported by National Key Foundation of China
