Multi-channel digital signal processor-based flow field reconstruction computing method
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The invention discloses a multi-channel digital signal processor-based flow field reconstruction computing method. The spectral radiation information of flow fields to be detected, such as an aviation engine plume and the like, is received by a multi-channel planar array photoelectric sensor. The method comprises the following steps that: firstly, a micro control unit controls a main program to start a multi-channel analog-to-digital converting unit to convert the measurement of a vector analog signal to the measurement of a vector digital signal; secondly, a multi-channel data cache unit caches the data of the measurement of the vector; and finally, projection matrix data is stored in an external data storage. The method has the advantage that: based on multi-channel DSP parallel, tomographic reconstruction algorithm is realized; compared with that of the traditional pure software-based method, the reconstruction computing time of the method is saved; and the real-time property of detection is improved.