Title :
New method for the implementation of an NTSC digital video decoder
Author :
Kuo, Ching-Chih ; Chen, Yen-Ting
Author_Institution :
Dept. of Electron. Eng., Hwa Hsia Coll. of Technol. & Commerce, Taipei, Taiwan
fDate :
5/1/2002 12:00:00 AM
Abstract :
This paper presents a new method for the implementation of an NTSC digital video decoder. This new fully digital architecture uses a phase-locked loop to compensate the unstable video source and an adaptive comb filter to improve the quality of Y/C separation. Simulation results show that it can successfully combat a sinusoidal timing variation of ±2 μs for horizontal line lengths within one frame. It can also lock to a 3.58 MHz color subcarrier with frequency variation up to ±500 Hz
Keywords :
adaptive filters; comb filters; decoding; digital phase locked loops; digital television; television standards; video coding; NTSC; Y/C separation; adaptive comb filter; digital video decoder; phase-locked loop; unstable video source; Adaptive filters; Application software; Computer architecture; Decoding; Demodulation; Frequency; Particle separators; Signal generators; TV; Timing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2002.1010131
