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A Method of Selecting Optimal DSP System Soft Protection Based on Genetic Algorithm
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A genetic algorithm and soft protection technology, applied in genetic models and other directions, can solve problems such as inconsistent benefit and cost models, difficult to balance protection methods, etc.
Active Publication Date: 2018-01-23
XIDIAN UNIV
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[0007] The purpose of the invention is to overcome the different benefits and cost models of various DSP system protection methods in the prior art, which makes it difficult to balance in the process of selecting protection methods
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Embodiment 1
[0063] In order to overcome the different benefit and cost models of various DSP system protection methods in the prior art, it is difficult to make a trade-off in the process of selecting a protection method.
[0064] For this reason, the invention provides a kind of method based on genetic algorithm selection optimal DSP system soft protection, comprises the steps:
[0065] Step 1: Establish a target optimization model;
[0066] Step 2, using a genetic algorithm to solve the target model;
[0067] Step 3: output the protection method combination.
[0068] The above step 1, establishing the target optimization model includes the following steps:
[0069] (1) Divide the project code into m blocks with sequential execution order, denoted as X 1 、X 2 、X 3 …X m , the various protection methods of the program block are denoted as k s , X s The probability of error is denoted as P s , block X s Use the kth s The probability of error after the protection method is Block...
Embodiment 2
[0115] Use the above method to divide the project code into 5 program blocks with sequential execution order. Each module can use 4 protection methods to calculate the optimal protection combination. The initial data is shown in Table 1 below.
[0116] Table 1 module related data and protection data
[0117]
[0118]
[0119] (1) Coding scheme
[0120] For the above data, the number of modules is 5, ie m=5, and each module has 4 protection methods, ie n=4, so, for each module, there are five options. Binary codes are used for these five options. Since two-digit binary codes can only represent four combinations at most, here we use three-digit binary codes. There are a total of eight combinations of three-bit binary codes, and we only use five of them. The specific combinations are shown in Table 2 below.
[0121] Table 2 Valid codes and corresponding methods
[0122] protection
no protection
method 1
Method 2
Method 3
Method 4
codin...
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Abstract
The invention belongs to the DSP system soft protection technology field and discloses a method for choosing an optimal DSP system soft protection based on a heredity algorithm. The method disclosed by the invention comprises steps of establishing a target optimization model, adopting a heredity algorithm to solve the target model, and establishing a DSP system error rate and a resource parametric object model through a protection method combination output. The method for choosing the optimal DSP system soft protection based on a heredity algorithm performs restriction on source cost, and utilizes the heredity to perform optimal solution on the usage benefits of various protection methods between divided program blocks to obtain a global optimal protection method combination. The heredity algorithm finds the optimal solution from multiple points in the space and is not easy to be in the local optimum. For the various protection method combinations, the heredity algorithm can perform operation on the adaptive value and can save the optimal solution time.
Description
technical field [0001] The invention belongs to the technical field of DSP system soft protection, and in particular relates to a method for selecting an optimal DSP system soft protection based on a genetic algorithm. Background technique [0002] DSP chip, also known as digital signal processor, is a kind of microprocessor that is especially suitable for digital signal processing operations. Its main application is to realize various digital signal processing algorithms in real time and quickly; A technical discipline that uses digital methods to analyze, transform, filter, detect, modulate, demodulate, and perform fast algorithms on signals. But many people think that digital signal processing is mainly about digital filtering technology, discrete transform fast algorithm and spectral analysis method. With the development of digital circuit and system technology and computer technology, digital signal processing technology has also been developed accordingly, and its app...
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