An FPGA-based voice signal preprocessor for the real-time cross-correlation

This paper studies and designs of a car automatic driving control system, the system is a dual-core FFT processor based on the pipeline structure CORDIC algorithm design is based on the voice signal spectrum analysis, and through the to extract MFCC voice characteristics Template Library instruction data in comparison, thereby generating a control signal, and ultimately by the FPGA control the wireless communication module to achieve the basic operation of the voice control of the car commonly. Download test results show that the system can be done in real-time response to voice commands, the system has a simple hardware structure, real-time, high reliability, and can be widely used in the field of voice recognition control systems in DE2 experimental development platform .

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Research on Digital Correlator Algorithm Based on FPGA

Sun¹,

Jun²,

Geng³

et al. 2019

IJCTE

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This paper designs and implements a parallel correlation algorithm for ultra-long sequence in large-scale field programmable gate array (FPGA). The operation speed is 64 times faster than traditional algorithms. Combining multiple data values in one RAM address improves the efficiency and avoids the time consumption caused by reading data repeatedly. The multi-group multiply accumulator is used to calculate the data read according to certain rules, which fully utilizes the advantages of parallel operation in FPGA and reduces the operation time. This algorithm overcomes the shortcomings of the limit of the number of multipliers in the serial pipeline operation method, which can only perform correlation operations on short sequences, and makes up that the general parallel algorithm is more convenient only for the correlation operation of the two signals without relative sliding, but the sequential control is too complex when the two signals have relative sliding.

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An FPGA-based voice signal preprocessor for the real-time cross-correlation

Cited by 3 publications

References 4 publications

Improvement unvoiced replacement techniques base on real time processing using FPGA board

Improvement unvoiced replacement techniques base on real time processing using FPGA board

Design and Implementation of Automatic Car Driving Control System Based on FPGA

Research on Digital Correlator Algorithm Based on FPGA

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