Digital pre-distortion table generation method, device and digital pre-distortion system
A digital pre-distortion, meter generation technology, applied in transmission systems, synchronization/start-stop systems, electrical components, etc., can solve the problems of single DPD meter influencing factors, poor digital pre-distortion effect, and no DPD meter data detection and evaluation.
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no. 1 example
[0032] figure 1 The schematic diagram of the structure of the DPD table generation device provided by the first embodiment of the present invention, by figure 1 It can be seen that in this embodiment, the DPD table generation device 1 provided by the present invention includes an evaluation module 11, an acquisition module 12, an optimization module 13 and a generation module 14, wherein,
[0033] The evaluation module 11 is used to use the acquisition module 12 to perform full traversal data collection of all operating parameters of the product samples of the device to be processed for all operating parameters that affect the DPD table of the device to be processed according to the nonlinear mathematical model of the device to be processed to obtain evaluation data , generate a data collection use case and a full range of data generation methods according to the evaluation data, for use by the collection module 12 and the generation module 14;
[0034] The collection module ...
no. 2 example
[0070] figure 2 The flow chart of the DPD table generation method that the second embodiment of the present invention provides, by figure 2 It can be seen that, in this embodiment, the DPD table generation method provided by the present invention includes the following steps:
[0071] S201: According to the nonlinear mathematical model of the device to be processed, for all the working parameters affecting the DPD table of the device to be processed, all the working parameters of the product sample of the device to be processed are collected for full traversal data, to obtain evaluation data, and to generate data collection according to the evaluation data Use cases and a full range of data generation methods;
[0072] S202: Use the data collection use case to collect data from the device to be processed, and obtain optimization data;
[0073] S203: Detect and optimize the digital pre-distortion effect on the optimization data, and use the optimization result as a model co...
no. 3 example
[0081] The present invention provides a system and method for automatically generating a DPD table. The method aims at the nonlinear characteristic mathematical model of the device, uses an automatic data collection system, and collects the DPD model coefficients required by the mathematical model based on the principle of probability and statistics. In order to realize Feasibility, practicability and equipment production efficiency of data collection. These DPD model coefficients are collected under limited samples and screening factors. On this basis, in order to ensure data accuracy and pre-distortion effect, the collected DPD model The coefficients are used to traverse and optimize the pre-distortion effect. After these optimized model coefficients are written into the DPD table, the basic data obtained by these optimizations are finally used to calculate and generate complete data within the range of selected factors and conditions, and generate a complete DPD table, and w...
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