This paper deals with stochastic characteristic of the wind speed, and gives an auto-regressive moving-average (ARMA) model for wind speed subjected to particular power spectral density.
该文针对风速随机变化的特性，在风速统计特性研究的基础上，用自回归滑动平均(ARMA)方法建立了具有一定功率谱密度特性的风速模型。
Heilongjiang also has great potential for wind power, with an average wind energy density of 200 watts per square metre.
黑龙江省有着巨大的风电发电潜力，拥有每平方公里平均风力电能密度达20 0瓦。
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