Results show the dependence of sr and ssr on the noise distribution and extend the application of sr and ssr in digital signal processing 這些結(jié)果進一步說明了隨機諧振或閾上隨機諧振對噪聲分布的依賴性,同時也拓廣了隨機諧振或閾上隨機諧振在數(shù)字信號處理方面的應(yīng)用。
The traffic noise of a new traffic source - combined overhead road was measuered , and the noise distribution under varied road conditions and different surroundings was compared , anlyzed and discussed . the noise model of overhead road , which with special section such as slope was put forwarded , based on the basic overhead noise model by considering the effects of the special section on the total noise level and distribution 比較分析了不同路況下及周圍環(huán)境下的噪聲分布情況,在水平段高架復(fù)合道路噪聲的豎直分布模型的基礎(chǔ)上,考慮上下坡段對兩側(cè)建筑物噪聲分布的影響,建立了特殊路況下高架復(fù)合道路噪聲的豎直分布模型,預(yù)測值與實測值基本符合。
By using the method based on structural vibration characteristics and neural network methods , the approach to locate single and double weld damage in a simply support steel beam with open i - formed is investigated respectively , and the effective measure to resisting noise distribution for networks is presented 以工程上常見的工字型簡支鋼梁為研究對象,分別采用基于結(jié)構(gòu)振動特性的方法和神經(jīng)網(wǎng)絡(luò)方法,對其進行了單處和兩處焊縫損傷自動識別的研究,并提出了解決網(wǎng)絡(luò)抗噪聲干擾問題的有效措施。