beat spectrum

基本解釋

In order to improve the range precision of LFMCW radar, this paper presents the method based on the frequency domain up-sampling-interpolating of the beat signal spectrum.
本文提出了將線性調(diào)頻連續(xù)波（LFMCW）雷達(dá)差拍信號(hào)離散頻譜增采樣內(nèi)插以提高雷達(dá)測(cè)距精度的方法。
Output power equalization of laser dual spectrum lines is a special requirement which is put on its laser source by two wavelength beat wave absolute distance interferometry.
雙譜線功率一致性是拍波干涉測(cè)長(zhǎng)方案對(duì)激光光源提出的特殊要求。

Other than parking cash for a few years in short-term bond index funds to beat money markets, lazier investors might do better with actively managed broad-spectrum bond funds.
FORBES: Magazine Article