相干检测是一种信号的解调机制。利用调制信号的载波和接收到的已调信号相乘，然后通过低通滤波得到调制信号的检测方式。
无源相干检测 Passive Coherent Detection
精密相干检测 precision coherent detection
部分相干检测 partially coherent detection
IDD非相干检测法 IDD noncoherent detection
相干检测光时域反射计 COTDR Coherent detection OTDR
相干零差检测 coherent homodyne detection
非相干光检测器 non-coherent optical detector
相干光检波与测距系统 coherent light detecting and ranging
Channel estimation is a research focus; it is the fundament of coherent detection, demodulation and equalization.
信道估计是一个研究热点,它是进行相干检测、解调和均衡的基础。
参考来源 - OFDM系统中的信道估计算法研究In this paper, we put forward and carry out a kind of precision coherence detection instantaneous data acquisition system (PCD1DAS) successfully. High ability of anti-noise > good precision, great flexibility and high speed are its specialty.
也正是在这种背景下，我们提出并实现了一种精密相干检测的瞬时数据采集系统，它的最大优点也就在基于它研制的精密相干检测仪具有很强的抗干扰能力，精度高，灵活性大且速度快。
参考来源 - 精密相干检测的瞬时数据采集系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
介绍了一种新的建立在相干检测原理上的光衰减标准。
A new optical attenuation standard device developing based on coherent detection principle is presented.
论文的工作是围绕频域激电相干检测嵌入式系统的设计而展开的。
This paper is developed around the designing of the embedded system of frequency domain induced polarization coherence detection.
考虑到瑞利衰落信道为随机信道，用非相干检测对信道进行估计。
Considering Rayleigh fading channel is random channel, noncoherent detection is used for channel estimation.
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