scholarly journals High-speed Real-time Spectrum Analysis System Based on FPGA and GPU Parallel Arithmetic

2016 ◽  
Author(s):  
Jingye Chen ◽  
Ziyu Li ◽  
Lei Chen ◽  
Junying Xu
Keyword(s):  
Real Time ◽  
Spectrum Analysis ◽  
High Speed ◽  
Time Spectrum ◽  
Parallel Arithmetic ◽  
Analysis System ◽  
Spectrum Analysis System

The Design of Spectrum Analysis System on Ultrasonic Based on DSP

2012 ◽  
Vol 433-440 ◽  
pp. 2721-2725
Author(s):  
Shao Qing Wang ◽  
Ye De Li
Keyword(s):  
Frequency Domain ◽  
Real Time ◽  
Frequency Spectrum ◽  
Time Domain ◽  
Spectrum Analysis ◽  
Ultrasonic Signal ◽  
Analysis System ◽  
Spectrum Graph ◽  
Spectrum Analysis System

The spectrum analysis system, which is based on TMS320F2808, can detect ultrasonic signal in real time. The signal is transformed from time domain to frequency domain by use of FFT. The spectrum graph can be displayed on LCD in real time. The practical results illustrated that this system can analyze the frequency spectrum efficiently with the range of 30kHz~50kHz.

Speed Synchronization System of Master-Slave Motor Based on Repetitive Control

2014 ◽  
Vol 644-650 ◽  
pp. 523-526
Author(s):  
Yun Ling ◽  
Huan Chen ◽  
Fei Li
Keyword(s):  
Real Time ◽  
Spectrum Analysis ◽  
Repetitive Control ◽  
Speed Control ◽  
Time Spectrum ◽  
Mechanical Resonance ◽  
Synchronization System ◽  
Speed Controller ◽  
Control Scheme ◽  
Magnet Wire

In the wrapping process of magnet wire, as the haulage speed of master motor varies periodically, it is difficult for slave wrapping motor to track master motor due to the mechanical resonance, which destabilizes the wrapping pitch. In the proposed system, the synchronization speed control scheme of master-slave motor based on repetitive control compensation is employed. In the process of control, real-time spectrum analysis of the haulage speed is given, which can be used to adjust the parameters of wrapping speed controller adaptively with the acquired characteristic information of the mechanical resonant. Simulation shows that wrapping speed can track haulage speed well in the proposed system, and the maximum tracking synchronous deviation can be reduced to 56% of that in the system without repetitive control.

Real time spectrum analysis

1983 ◽  
Vol 216 (1-2) ◽  
pp. 191-203 ◽  
Author(s):  
A. Blunden ◽  
D.G. O'Prey ◽  
W.H. Tait
Keyword(s):  
Real Time ◽  
Spectrum Analysis ◽  
Time Spectrum
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