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RM encoding DSP code
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Application background Mulma - Reed (Reed-Muller, RM) is a class of encoding. This kind of code is simple in structure, rich in structure, and can be used in several ways in which the soft or hard decision algorithm is used. The RM compiled code algorithm is: length (n, K) reed Muller code encoding method is will generate matrix X knM and input data vector x 1kx by matrix multiplication, on each element of mod 2, that can be encoded data vector. The decoding algorithm is the use of large number of logic decoding. Key Technology This program using C language to achieve RM encoding and decoding
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IPC communication code TMS320C6670 multicore DSP
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Application background IPC (inter process communication and inter process communication) IPC (instruction per clock and CPU in each clock cycle to execute instructions) IPC represents a processor architecture design, once the processor design is completed, the IPC values will not be changed. Here, the IPC value plays a decisive role, and the frequency appears no longer above all. Key Technology IPC communication mechanism is: semaphore and shared memory, message queues, began to see when feeling a bit difficult, when I imitate the book program writes the code after, slowly understand.Signal quantity: PV operation in the operating system to achieve;Shared memory: apply for a piece of memory, process A to share memory to write, other processes can be read through the contents of shared memory to obtain the information transmitted by the process A;Message queue: create a message queue, the process A to write in the queue, then the process of B by re
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FFT code in c language version
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Application background FFT (fast Fourier transformation), fast Fourier transform, the discrete Fourier transform algorithm is fast, it is according to the characteristics of discrete Fourier transform of the odd, even, virtual and real, to the discrete Fourier transform algorithm was improved to obtain. Key Technology FFT is according to the characteristics of discrete Fourier transform of the odd, even, virtual and real, to the discrete Fourier transform algorithm was improved to obtain. The Fourier transform theory it is not a new discovery, but for the computer system or digital system in the application of discrete Fourier transform, can be said to be in a big step.FFT algorithm (Bufferfly algorithm)
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