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Turbo code apparatus for encoding turbo code and TDMB system having the Turbo code apparatus
Turbo code apparatus for encoding turbo code and TDMB system having the Turbo code apparatus
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机译：用于对turbo码进行编码的turbo码设备和具有该turbo码设备的TDMB系统
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摘要
PURPOSE: A turbo coder applied with a turbo code and a terrestrial digital multimedia broadcasting (T-DMB) system are provided to turbo-code a puncturing process without modification, thereby improving a performance thereof. CONSTITUTION: A turbo encoder applied with a turbo code includes a turbo interleaver, a first configuration code, a second configuration code, a first puncturing part, and a second puncturing part. The first configuration code is connected to the turbo interleaver, initializes a registry value into zero using a tail bit with a value fed back through a switching process, and outputs a first systematic component and two first parity bits. The second configuration code is connected to the turbo interlearver, initializes the registry value into zero using the tail bit with the value fed back through the switching process, and outputs a second systematic component and two second parity bits. The first puncturing part receives five bits of the first systematic component and first parity bits from the first configuration code, and second parity bits from the second configuration code, and then outputs four bits through a first puncturing process. The second puncturing part receives the four bits from the first puncturing part, and then outputs three bits through a second puncturing process. [Reference numerals] (AA) Turbo interleaver; (BB) First puncturing unit; (CC) Second puncturing unit (using a puncturing index (PI))
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