invariance method

基本解釋

ESPRIT is a signal parameter estimation method using rotational invariance approaches, which is a subspace decomposing technique.
ESPRIT算法是一種用信號旋轉不變性來估計信號參數(shù)的方法，屬于子空間分解技術。
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為基礎，結合子空間旋轉不變性和最小二乘法實現(xiàn)了電力系統(tǒng)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.
實驗結果表明該算法相對傳統(tǒng)基于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。