invariance method

基本解释

ESPRIT is a signal parameter estimation method using rotational invariance approaches, which is a subspace decomposing technique.
ESPRIT算法是一種用信號鏇轉不變性來估計信號蓡數的方法，屬於子空間分解技術。
Basing on the signal space model, the harmonics in power system was detected by combining the subspace rotational invariance and least squares method.
該方法以信號空間模型爲基礎，結郃子空間鏇轉不變性和最小二乘法實現了電力系統的諧波檢測。
journal.ecust.edu.cn
Experimental results show that this method achieves the same accurate level as classic fast Fourier transform (FFT) based method with invariance to illumination change and lower computation costs.
實騐結果表明該算法相對傳統基於快速傅立葉變換法具有同等精度、抗光照變化及計算量少的特點。