quantization error

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quantization error

The difference between an analog wave and its digital representation. Also known as "quantization noise." See quantization.
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Huffman [6]), and the high frequency of small values close to zero will also limits the intensity of quantizing noise.
11] designs an optimal fixed-rate quantizer to minimize the quantization error depending on the distribution of CS measurements, and the Sigma-Delta quantizer in [12] and [13] even exploits the Restricted Isometry Property (RIP) of measurement matrix to provide robustness to quantizing noise.
It is obvious that the difference after removing space-time redundancy can be represented using far fewer bits than the original CS measurement vector, and meanwhile the Laplacian distribution of difference is also helpful to suppress the quantizing noise of SQ [2].