1.〔电信〕外差法,外差(本机)振荡器
2.外差作用
3.差拍
1.外差式的
1.(使)成拍,(使)致差,(使...)混合
1.consisting of, produced by, or operated by heterodyning signals
1.to combine a received radio-frequency wave with a wave of a different frequency to produce frequencies equal to the sum of and the difference between the original two signals
1.A back-to-back experimental result is given for a 4-channel system, based on which, a down conversion process for heterodyne can be reduced.
针对4通道接收，我们给出了背靠背实验方案，并且基于此方法，省去了外差系统所需的下变频过程。
2.A method of collimating optical systems by a heterodyne interferometer is described and the errors of the system measurements are analyzed.
描述了基于外差干涉仪原理的用于精密空间光学的准直方法，分析了该方法进行光学系统准直的系统误差；
3.Furthermore, the heterodyne interferometry is incorporated into the system to reduce the noises from environments.
另外又加入外差干涉的技术期望降低系统对环境的敏感度；
4.A novel laser heterodyne interferometer used for on-line measuring surface roughness has been developed.
一种新型的、用于在线测量表面粗糙度的激光外差干涉仪已研制完成。
5.n this paper, the theoretical analysis of a photorefractive adaptive optical heterodyne detection system is presented for the first time.
首次对光折变自适应光外差探测系统的工作状态进行了较全面分析。
6.Compared with the conventional heterodyne scheme, it avoids the complicated intermediate-frequency tracking system.
与寻常相干接收方案相比，省去了中频跟踪电子系统；
7.Laser heterodyne interferometer has advantages of high measuring precision and anti-environment disturbance ability.
激光外差干涉仪以其测量精度高、抗环境干扰能力强等优点得到了广泛的应用。
8.Frequency offset locking technology is widely applied in laser heterodyne detection and laser radar, which is of great value.
偏频锁定技术广泛应用于激光的外差探测、激光雷达等方面，具有重要应用价值。
9.The accuracy can be enhanced with optical heterodyne technique and the phase measurement of Doppler signals.
对多普勒信号进行光学外差处理并对多普勒信号进行测相，可以提高测量的精度。
10.Base on the heterodyne laser Doppler theory, a heterodyne laser Doppler vibrometer(LDV) with fiber structure was designed and implemented.
基于外差激光多普勒原理，设计并实现了一套光纤结构的外差式激光多普勒振动计（LDV）。