Zhi Hua Wang

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A band 3 receiver RF front-end for digital audio broadcasting (DAB) is described in this paper. The front-end integrates most of the functions necessary to receive and down convert band 3 (174~245MHz) signals for further baseband processing, including a variable gain LNA, mixers, VGA, IF amplifiers, and PLL. The overall receiver gain is >90 dB and NF is(More)
This paper proposed a new improved fast floating 4-point discrete cosine transform (DCT) algorithm applied in image compression based on JPEG. This 1-D 4-point DCT algorithm employs only 1 multiplication without increasing the number of add operation. This new algorithm saves 50% multiplications of the fastest algorithm proposed in the past.
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