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| 供应商 | Noesis Technologies |
|---|---|
| 型号 | Configurable Interleaver / De-interleaver |
| 类型 | Soft IP |
| 到期日 | Silicon proven |
| 源网址 | View more |
| 特征 | Support for block or convolutional (de)interleaving algorithm Programmable interleaving or deinterleaving functionality Parameterized symbol width and codeword length Programmable block size, number or rows/columns Programmable rows/columns permutations Programmable number of branches and branch length Compatible with continuous or burst mode Reed Solomon codecs Fully synchronous design using a single clock |
| 详情页 | View more |
| 附件名称 | ntINT_DEINT_pb.pdf |
| 附件链接 | View more |
Error detection and correction are perhaps the most important quality factors to observe when evaluating a digital transmission system. A system's noise environment can cause errors in the transmitted message degrading the credibility of the system. Digital communications systems designers can choose among many types of error correction codes to reduce the effect of errors in stored or transmitted data. Most common error correcting codes are designed to correct random errors i.e. errors that are independent of each other and distributed uniformly in time.
However errors that occur in bursts ,i.e. errors that occur sequentially in time and as groups, tend to be problematic for most FEC schemes. Block codes, and in particular Reed-Solomon codes, can handle burst errors effectively only as long as the number of errors per data block is below a certain limit. Interleaving is a simple, yet powerful technique that can be used to extend the error correcting capability of a Reed-Solomon code and other FEC codes.
The ntINT_DEINT interleaver/de-interleaver subsystem rearranges the encoded symbols over multiple data blocks. This effectively spreads out long burst noise sequences so they appear to the decoder as independent random symbol errors or shorter more manageable burst errors. This is achieved by using the interleaving function that changes the order of data before the transmission on the channel so that any adjacent symbols are well separated during transmission. The symbols are then reordered by the deinterleaving function during reception. Block and Convolutional are the most frequently used interleaver types.
However errors that occur in bursts ,i.e. errors that occur sequentially in time and as groups, tend to be problematic for most FEC schemes. Block codes, and in particular Reed-Solomon codes, can handle burst errors effectively only as long as the number of errors per data block is below a certain limit. Interleaving is a simple, yet powerful technique that can be used to extend the error correcting capability of a Reed-Solomon code and other FEC codes.
The ntINT_DEINT interleaver/de-interleaver subsystem rearranges the encoded symbols over multiple data blocks. This effectively spreads out long burst noise sequences so they appear to the decoder as independent random symbol errors or shorter more manageable burst errors. This is achieved by using the interleaving function that changes the order of data before the transmission on the channel so that any adjacent symbols are well separated during transmission. The symbols are then reordered by the deinterleaving function during reception. Block and Convolutional are the most frequently used interleaver types.
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