Not to endorse this guy, but I don’t think CDMA was invented by Qualcomm



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送交者: 吴礼 于 2006-3-31, 08:38:18:

回答: 猜猜这个牛人是谁? 由 heretic 于 2006-3-31, 02:32:01:

If I understood correctly, pseudo-noise based communications was used primarily by military, for its security and anti-jamming features (the same as the author above claimed). The contribution of Viterbi (founder of Qualcomm) was to point out (and eventually to convince the public) that pseudo-noise coding can be a spectrum-efficient method for multiple access channels, and a good way to provide diversity against frequency selective fading.



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