Sentence examples for coherence estimator from inspiring English sources

The most prominent and pioneering detection approaches are Kelly's generalized likelihood ratio test (GLRT [1], adaptive matched filter (AMF [2], and adaptive coherence estimator (ACE [3].

The directivity of this detector is in between that of the Kelly's GLRT and the Adaptive Coherence Estimator (ACE) [10, 11].

It is shown that the main effect of an additional time delay between the output and the input of a physical system is to multiply the frequency response and coherence estimators which would be obtained without delay with the normalized autocorrelation function of the window function and its square respectively.

Resulting bias and variance of the T-F coherence estimators, | Γ ̂ xy [ l, k ] | and | Ξ ̂ xy [ l, k ] |, are given in Figure 1.

By means of approximate formulas, an extensive bias error discussion of frequency response, output power spectral density and coherence estimates is given, which clarifies characteristic differences between spectral estimators obtained with the rectangular window on the one hand and the Hanning window (or another continuous window) on the other hand.

Naturally, the variance of estimator | Γ ̂ xy [ l, k ] | (Method 1) goes to zero, because it attributes the value of 1 to all T-F coherence estimates when no smoothing is applied.

Spectral power and coherence was estimated using direct multitaper estimators 43 (10 Hz bandwidth, 3 tapers, 200 msec spectral window padded to double its length with zeros) or continuous wavelet transformation 44 with mother wavelet of order 6.

Further suitable methods are the coherence-based SDR estimator proposed in [18] or a linearly constrained minimum variance (LCMV) beamformer placing nulls in the direction of direct sound sources while extracting the ambient sound [19].

Elementary decision theory; loss and risk functions, Bayes estimation; UMVU estimator, minimax estimators, shrinkage estimators.

The estimator predicts analytic coherence well, as shown by the correlations coefficient (r) of 0.67.

The second estimator is the coherence-based signal-to-diffuse ratio estimator (CSDRE) [32]; a similar estimator is also presented in [33].