scholarly journals INHERENT SIGNAL PREPROCESSING IN THE LINE CCD SENSOR

2014 ◽  
pp. 101-105
Author(s):  
Ludek Kejzlar ◽  
Jan Fischer

This paper is devoted to the description and practical verification of a new line CCD sensor control method. This method is used for inherent signal preprocessing or processing in line CCD sensor. This new method is suitable for movement compensation, one-frame filtration or two-frame filtration. Because of the similarity between a Non- Recursive Digital Filter with Finite Impulse Response (NRDF FIR) and the new mode we named it FIR mode. Conclusions and hints applicable for operation of line CCD sensor in FIR mode are also included in this paper.

2014 ◽  
Vol 989-994 ◽  
pp. 4195-4199
Author(s):  
Kui Zhang ◽  
Gong Liu Yang ◽  
Wei Zhen Zheng ◽  
Ren Dong Ma

An interpolated finite impulse response (IFIR) digital filter approach was purposed to improve the demerits of traditional finite impulse response (FIR) digital filter in the case of noise attenuation for dithered Ring Laser Gyroscope (RLG). Concentrated on the time delay and computation complexity, a comparison of FIR and IIR digital filter was illustrated. By optimizing the stretch factor L, an IFIR digital filter was designed to reach the requirements of a typical RLG. The static experiment results show that the impulse number is decreased from 250 to below 0.15, attenuation of the dither noise is nearly 100 dB and group delay remains the same level by 11.25ms.


1998 ◽  
Vol 47 (7) ◽  
pp. 1078
Author(s):  
LUO XIAO-SHU ◽  
KONG LING-JIANG ◽  
QU WAN-LI

1986 ◽  
Vol 23 (4) ◽  
pp. 339-348 ◽  
Author(s):  
I. M. Longair

Digital filtering techniques have become an important part of the curriculum of electronic engineering courses. This paper details a computer-based teaching aid, for the popular BBC model B microcomputer, which may be used to design and display the characteristics of a low-pass finite impulse response (FIR) digital filter.


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