Hello DSPers, After reading the thread about "Why cplex filters" a question comes to mind: how to generate complex filter coefficients if i do not wish to apply desired phase and amplitude correction to the original signal? I've passed the initial real signal through a Hilber Transformer, and have thus a complex analytic signal. I'm using a Blackfin DSP, and it has a complex fir function, as well as a real fir function. I am wondering: if i simply use the same coefficients for both the real and complex parts of the complex filter, will it yield the same result as if i pass both parts of the signal individually through a real filter, and reassemble the signal into I and Q after filtering? Sorry if this seams a bit simple, but I haven't found much explanations on complex FIR filters. Anyone have an equation for these type of filters? and for complex fir coeff generation? (actually a generalised equation about transorming filters into complex filters would be awsome) btw, this forum really is awsome. Some guys on here are blowing my mind in how they really have their heads wrapped around the subjects they talk about! Keep up the awsome forum, and the super neat answers! NiCad
Complex FIR Filters
Started by ●June 24, 2006