震源车压制城市噪声机理及效果分析
黄华1(
), 李忠生1,2(), 郑革辉1,3, 吴大林4, 王中圣1,2, 袁子恒1,5
), 李忠生1,2(), 郑革辉1,3, 吴大林4, 王中圣1,2, 袁子恒1,5
Mechanism and effect analysis of vibroseis vehicle suppressing urban noise
Hua HUANG1(), Zhong-Sheng LI1,2(), Ge-Hui ZHENG1,3, Da-lin WU4, Zhong-Sheng WANG1,2, Zi-Heng YUAN1,5
), Zhong-Sheng LI1,2(), Ge-Hui ZHENG1,3, Da-lin WU4, Zhong-Sheng WANG1,2, Zi-Heng YUAN1,5
图2. 变频扫描信号单次激发压制随机噪声效果分析
a—反射波信号;b—平均振幅值为10的高斯噪声信号;c、d、e—不同随机噪声强度(平均振幅值分别为5、10和15)的反射信号与扫描信号互相关效果
Fig.2. Analysis of random noise effect of single excitation of vary-frequency scanning signal
a—reflected wave signal;b—Gaussian noise signal with an average amplitude value of 10;c、d、e—cross-correlation between reflected and scanned signals with different random noise intensities(average amplitude values of 5、10 and 15 respectively)
