The results indicate that the relative distribution of the field wind wave directional spectrumenergy is closely related to the corresponding types of wave state.
结果表明，实测风浪方向谱能量的相对分布与相应的波场类型密切相关。
2
The principle of computer-RS classification recognizing is using the difference of feature of structure and spectrumenergy to recognize information of surface features.
计算机遥感分类识别原理，是利用地物的光谱能量特征差异性和结构特征差异性来识别地物信息。
3
By studying the principle of hearing system in identification of sound signal, a method of feature extraction for passive sonar target based on critical band spectrumenergy is proposed.