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From: | Ron Economos |
Subject: | Re: [Discuss-gnuradio] Reed-Solomon en/decoder |
Date: | Wed, 11 Mar 2015 04:52:46 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
Reed-Solomon codes are a form of FEC (Forward Error Correction). They make sense for communications channels that don't have a way for the receiver to ask for a re-transmission (such as broadcasting). Reed-Solomon codes are used on many digital formats. One of the first uses of RS coding were the Voyager 1 and 2 spacecraft launched in 1977. Then came audio CD in 1980 (I bought my first CD player in 1983). It uses a RS(28,24) and a RS(32,28) code. Other uses are DSL and Wimax (although you don't see much Wimax these days). In current standards, RS codes are now being replaced with more complex BCH (Bose, Chaudhuri, Hocquenghem) codes. Ron On 03/11/2015 03:16 AM, Jeon wrote:
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