國立臺灣大學電機工程學系Lu, Hsin-chiaHsin-chiaLu2006-09-272018-07-062006-09-272018-07-06http://ntur.lib.ntu.edu.tw//handle/246246/20060927122808398578Signal: characterization, enhancement, noise suppression examples: image restoration, speech enhancement System: characterization, synthesis examples: chemical processing plants Analysis tool: Fourier analysis, Fourier series, Fourier transform Signal type: continuous: voltage in a circuit, temperature,… discrete: closing stock market average, … • Quantization of continuous signals into discrete signals. • DSP ( digital signal process) is possible due to advance in computer and digital signal processing power. – Audio (CD, MP3) , Video (VCD, DVD, DVB) , … • Continuous and discrete formulations are presented is parallel in this book. They are similar but not identical.application/pdf1378335 bytesapplication/pdfzh-TWreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/20060927122808398578/1/000chapter1.pdf