Apparatus for encoding Turbo code and method thereof
A coding device and coding technology, applied in the field of channel coding
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Embodiment 1
[0076] In this embodiment, the used component code is (11, 13), the feedback polynomial of the component code is expressed as 11 in octal number, and the feedforward polynomial is expressed as 13 in octal number.
[0077] like Figure 4a As shown, the component code encoder of the present embodiment includes three shift registers, five adders, and a pair of switches. A toggle switch. Wherein, the adders are called the first to fifth adders according to the direction from input to output, and the shift registers are called first to third shift registers according to the direction from input to output. The input of the B road is connected to the first, second, and fourth adders at the same time; on the A road, the first adder is set between the switch and the first shift register, and the first and second shift registers are set There is a second adder, a fourth adder is arranged between the second and the third shift register, the output of the first adder and the output of t...
Embodiment 2
[0082] In this embodiment, the component codes and components used are the same as those in Embodiment 1, such as Figure 4b As shown, the difference is that the position of the switch on the A road is different from that of the first adder in Embodiment 1. The original input data A first enters the first adder, and the output of the first adder is then input to The first shift register and the third adder; and, the switch on the A road is also provided with a ground terminal, which is grounded when the switch switches.
[0083] The switch on the road A switches between the output terminal of the first adder and the ground terminal, and the switch on the road B switches between the original data input terminal and the ground terminal.
Embodiment 3
[0085] In this embodiment, the component code used is (11, 15), the feedback polynomial of the component code is expressed as 11 in octal number, and the feedforward polynomial is expressed as 15 in octal number.
[0086] like Figure 5a As shown, the component code encoder of the present embodiment includes three shift registers, five adders, and a pair of switches. A toggle switch. Wherein, the adders are called the first to fifth adders according to the direction from input to output, and the shift registers are called first to third shift registers according to the direction from input to output. The input of the B road is connected to the first, third, and fourth adders at the same time; on the A road, the first adder is set between the switch and the first shift register, and the first and second shift registers are set There is a third adder, a fourth adder is arranged between the second and the third shift register, the output of the first adder and the output of the...
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