Architecture of a Real-Time Wavelet Transform Calculation SoPC Core for Industrial Applications

The wavelet transform has found application in a large range of fields, from image processing to communications. This paper describes the design and implementation of a core for the calculation of the wavelet transform of an incoming signal. This core may be connected to other similar cores to perform higher level wavelet transform. Due to its flexibility, the circuit described in this paper may be inserted in a SoPC, thus building a digital system, which is able to calculate this rather complex operation in real time, using the hardware resources of a low cost FPGA, leaving the results available for the rest of cores present in the SoPC. The data processing results achieved with this core implementation allow the calculation of the wavelet transform even for high speed signals and the possibility of including this core into a SoPC enables higher level operations, such as data compression, pulse detections, etc