Moving Average Filters
Moving Average Filters
... in some way. Analog(electronic) filters can be used for these same tasks; however, digital filters can achieve farsuperior results. The most popular digital filters are described and compared ... with either analog or digital filters. Whichis better? Analog filters are cheap, fast, and have a large dynamic range inboth amplitude and frequency. Digital filters, in comparison, are vas...
Ngày tải lên: 13/09/2012, 09:50
Moving Average Filters
... [84] 5Moving Average FiltersThe moving average is the most common filter in DSP, mainly because it is the easiest digitalfilter to understand and use. In spite of its simplicity, the moving average ... point moving averageFIGURE 15-1Example of a moving average filter. In (a), arectangular pulse is buried in random noise. In(b) and (c), this signal is filtered with 11 and 51po...
Ngày tải lên: 13/09/2012, 09:50
Windowed-Sinc Filters
... 285CHAPTER16h[i] 'sin(2B fCi )i BWindowed-Sinc FiltersWindowed-sinc filters are used to separate one band of frequencies from another. They are verystable, ... convolution, windowed-sinc filters are easy to program, but slow to execute. Chapter18 shows how the FFT can be used to dramatically improve the computational speed of thesefilters. Strategy of the ... Signal Processing292FIGU...
Ngày tải lên: 13/09/2012, 09:50
Custom Filters
... using these filters on the examplewaveform of Fig. 17-7a.The moving average filter is the topic of Chapter 15. As you recall, eachoutput point produced by the moving average filter is the average ... optimal filters. Thesesignals result from filtering the waveform in Fig.17-7 with the filters in Fig. 17-8. Each of thesethree filters is optimal in some sense. In (a), themoving...
Ngày tải lên: 13/09/2012, 09:50
Recursive Filters
... Blackman and Gaussianfilters (relatives of the moving average, Chapter 15), but with a much fasterexecution speed. The design equations for a four stage low-pass filter are:Narrow-band FiltersA common ... distinguishes themfrom digital filters carried out by convolution, called Finite Impulse Response (FIR) filters. Thischapter is an introduction to how recursive filters operate, and...
Ngày tải lên: 13/09/2012, 09:50
International transportation: Moving the global economy forward
... INTERNATIONAL TRANSPORTATION :MOVING THE GLOBAL ECONOMY FORWARDEconomicPerspectivesVolume 5 An Electronic Journal of the U.S. ... pursuit oftransportation excellence and innovation.ECONOMIC PERSPECTIVESInternational Transportation: Moving the GlobalEconomy ForwardU.S. DEPARTMENT OF STATE ELECTRONIC JOURNAL ... PERSPECTIVESAn Electronic Journal of the U.S. Department of StateCONTENTSINTERNA...
Ngày tải lên: 24/10/2012, 14:37
Average Jones
... Average Jones by Samuel Hopkins Adams Web-Books.Com Average Jones I. The B-Flat Trombone ................................................................................................................3 ... "What's that?" asked Average Jones with awakened interest. "Only a quack medical concern looking for a stall to impress their come-ons," explained Waldemar....
Ngày tải lên: 06/11/2012, 16:13
