Post stack cross equalization generally consists of time shift calibration, amplitude calibration, phase calibration, frequency calibration and waveform calibration.

叠后互均化处理通常包括时移校正、振幅校正、频带校正、相位校正和波形校正。

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By using multiple overlapped SPWVD Windows, the effect of cross-term interference in the time-frequency analysis was minimized.

通过将多个时频分析的窗口重叠来克服时频分析中交叉项的影响。

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The paper studied the issue of low frequency in shallow parts of cross-hole seismic reflection sections using imaging principle and deduced frequency variation factor.

本文利用成像原理对井间地震反射剖面的浅部频率变低问题进行了研究，导出了频率变化因子。

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Quill said some firms are turning to cross-asset trading because the high frequency trading (HFT) business is now dominated by ultra high frequency trading firms whose massive investments in sophisticated hardware like FPGAs has made it difficult for smaller players to compete.

FORBES: Chicago's Sun Trading Consolidates Asset Classes on Kx

Then there was the North Yorkshire community school which had turned the Pi into an RFID (radio-frequency identification) reader to measure lap times in their cross-country races, and the London independent school whose pupils had come up with Teacher's Pet, a way of delivering homework via USB sticks plugged into the tiny computer.

BBC: The life of Pi - clever ideas with a tiny computer