differential transmission meaning in English

差动传动
差分传动方式

An instrument that in a painless and noninvasive manner uses the differential transmission and reflection of ultrasonic waves to create a detailed visual image of the brain
超声波心动描记器一种用来显示详细的大脑图象的仪器，利用超声波发送和反射的差异来测试并无伤无痛
The assumption that the channel is known is questionable in a rapidly changing mobile environment , or when multiple transmitter antennas are employed . unitary space - time codes and differential unitary space - time codes do n ' t need any channel information . we discuss the unitary space - time codes briefly and study the details of the dustc , including the fundamental differential transmission and receiver equation , and parameters searching algorithm . the parameters searching and simulations results is proposed
酉空时编码及酉差分空时编码( dustc )都不需要信道信息,着重研究了酉差分空时编码技术,简要说明了酉空时编码的信号形式及星座设计方法;分析了dustc的发送和接收公式,分析了dustc的严格pep和sep的联合界,给出了当snr值在不同的范围时, dustc星座参数的选取准则,并进行了rayleigh衰落信道的仿真。