| 摘要 |
<p>The coding-decoding system is used for a data bit sequence provided by a source and transmitted to a reception unit in analogue form. The data bit sequence is divided into single bit blocks, a number of parity bits associated with each block. Each block is converted into an analogue value, which can then be reconverted back into a bit block. The parity bits associated with each block are provided by repetition of the preceding data bits, such that each bit is contained within a number of successive blocks, but with a different weighting. These successive blocks are stored in a memory providing access to the values assigned to each bit, for error correction.</p> |
