Hardware solution for haar wavelet transform in real time
Oleg Fedorovich Kovalev, I. P. Yanchenko · 2016
The paper proposes a new algorithm for fast calculation of the Haar wavelet transform and possibility of its application in the time-frequency analysis of the waveform. It describes the basic idea of the method of calculation with a substantial decrease in the number of performed mathematical operations. Reduced computational capacity of the method is achieved by using recursive computation scheme based on results of the previous time step. It is compared with a conventional algorithm using software simulation. The hardware implementation of the method differs in significantly decrease of the number of used programmable logic integrated circuit resources. It is found that cost of equipment is reduced due to increasing number of wavelet transform levels.