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SimultaneousObservation
- Very Low Frequency (VLF) spectrograms show sometimes sets of lines called MLR (Magnetospheric Line Radiation) with frequency spacing close to 50 or 60 Hz. It is very tempting to attribute these MLR to Power Line Harmonic Radiation (PLHR). PLH
Study-on-the-Control-Scheme
- 恒频恒压(CVCF)逆变电源的输出电压波形质量是衡量其性能的重要指标之一。文章采用一种重复控制和双闭环控制相结合的电压波形控制策略，以重复控制器提高逆变电源输出电压的稳态精度，减小总谐波畸变率；以双闭环控制器达到较快的动态响应速度。该方案在一台采用TMS320F240 DSP控制芯片的50 Hz三相PWM逆变器上得到验证。-Constant voltage constant frequency (CVCF) Inverter output voltage waveform quality is
VESA-Standard-
- VESA监视器时序标准手册,包括各种格式的视频流时序参数等-Monitor Timing Standard，640x350 at 85 Hz，640x400 at 85 Hz，1024x768 at 43, 60, 70, 75, & 85 Hz，and so on.
erp
- The goal is to eliminate the noise of ERP signals . This is done by Mtvstgyry signal . This question several recordings of ERP has given us and request that Mtvstgyry noise to delete the record . ERP-1 file sampling frequency of 256 Hz sample of 240
tryfinalLMS_Equalizer
- 4. 16QAM uses a mix of amplitudes and phases to achieve 4 bits/Hz. In this example, there are three amplitudes and 12 phase shifts. While QAM is enormously efficient of spectrum, it is more difficult to demodulate in the presence of noise, wh