Channel Optimized Matrix Quantizer (COMQ) in CELP Coding
نویسندگان
چکیده
In this paper we present a study of channel optimized ma trix quantizer (COMQ) applied to quantize LSP parameters in a CELP (Code Excited Linear Prediction) coder. A mod ification of the DoD FS-1016 standard [2} is used for this purpose. A Gaussian channel is considered as the channel through which information is sent and BPSK (Binary Phase Shift-Keying) is used as modulation technique. To measure the peiformance of this coder several channel signal to noise ratio (CSNR) are considered. Also, the peTjormance ofPS1016 standard coder is computed for comparison purposes.
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