Category Archives: signal processing

Monotonically increasing intervals

Problem  A real sequence satisfies for all , where . Let be the length of the th interval. Show that there exists a unique such that for all . Remark  This is a problem that arises from nonlinear quantization in … Continue reading

Posted in Analysis, mathematics, signal processing | Leave a comment

3D Matrix Multiplication Tricks

Recently, I came across times 3D matrix multiplication in Matlab. It is for frequency domain signal processing, specifically, frequency-dependent multi-channel Wiener filter. Here, 3D matrix multiplication means 2D matrix multiplication at each frequency (or other parameters):  Given and which are … Continue reading

Posted in coding, signal processing | Tagged , | 1 Comment