DEVICE AND METHOD FOR DESIGNING MODELING IN SPW ABOUT DIGITAL VCR TAPE

摘要

PURPOSE: A method for designing a modeling in an SPW(signal processing worksystem) about a digital VCR tape is provided to minimize a simulation by performing a mutilate of DSP(digital signal processing) chip to play a D-VHS(digital video header system). CONSTITUTION: A first precoder(20) converts a binary sequence to a bipolar pulse sequence by inputting a PN sequence bit input signal and offers a duo binary signal of PN(pseudo noise) sequence bit input signal. A channel unit(30) offers a tri-binary signal having a magnetic characteristic by inputting the duo binary signal. A first adder(50) offers the tri-binary signal added a white noise by inputting the tri-binary signal and the white noise. A detecting IC(integrated circuit)(60) outputs an MPEG VCR(video cassette recorder)-2 program stream after correcting an error through a viterby by inputting the tri-binary signal. A second precoder(70) offers a duo binary signal of MPEG-2 program stream. A comparator(80) offers a compared error signal by inputting the duo binary signals. A detector of error rate(90) displays a measured error by inputting the compared error signal.