The whitenoise scanning test was conducted before the shaking table test and repeated at every interval of each test to obtain the law of the basic frequency vary with the time.
在模拟地震试验前和各阶段模拟地震试验后均对模型进行了白噪声扫描试验，考察了模型的频率变化规律。
2
The blind estimation algorithm of Doppler frequency suitable for telemetry systems involving additional white Gaussian noise (AWGN) channels is proposed in this paper.
提出一种适应于在加性高斯白噪声信道(AWGN)下遥测系统的多普勒频偏盲估计算法。
3
A method for estimating the frequency of a complex sinusoid in additive complex white Gaussian noise is proposed.