中国测试精选文章 关键词：多传感器；信号特征；算法；数据融合；火灾报警；消防管理 [gap=848]Key words：Multi-sensor；Single character；Arithmetic；Data fusion；Fire alarm；Fire control management
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This algorithm uses the signal characteristic which are contained in the power spectral density by the Fourier transformation to estimate the channel quality blindly.
该算法是利用了信号进行傅里叶变换后功率谱密度中所包含的信号特征来进行信道质量盲估计的。
参考来源 - 基于CPM信号的盲信道质量估计算法研究The peak-peak difference and phase difference between response signal and excitation signal are selected as the signal features,and are calculated using digital peak-peak algorithm and duty cycle principle.
选取感应信号相对于激励信号的峰-峰值差和相位差作为特征量,采用数字式峰-峰值算法和占空比原理计算信号特征量。
参考来源 - 一种钢丝绳断丝无损定量检测方法·2,447,543篇论文数据，部分数据来源于NoteExpress
首先分析了雷达目标散射信号特征。
At first, the radar target scattering signal characteristics are analyzed.
目的观察骨原发性淋巴瘤的MR表现，探讨其信号特征。
Objective To study MR manifestation and signal characteristics of primary bone lymphoma.
介绍数字信号的预处理方法、信号特征量和信号的定量解释方法。
Digital signal preprocessing methods and the characteristic values and quantitative interpretation of signals are introduced.
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