scholarly journals A Simple Interactive Program For Real Time Fir Digital Filters Written In The C Language

2020 ◽  
Author(s):  
James E. Cross
Keyword(s):  
Real Time ◽  
Digital Filters ◽  
Interactive Program ◽  
C Language ◽  
Fir Digital Filters

scholarly journals A Set of Integral Grid-Coding Algebraic Operations Based on GeoSOT-3D

2021 ◽  
Vol 10 (7) ◽  
pp. 489
Author(s):  
Kaihua Hou ◽  
Chengqi Cheng ◽  
Bo Chen ◽  
Chi Zhang ◽  
Liesong He ◽  
...  
Keyword(s):  
Real Time ◽  
Spatial Information ◽  
Data Retrieval ◽  
Geospatial Data ◽  
Algebraic Operation ◽  
Real Time Processing ◽  
C Language ◽  
Time Processing ◽  
Binary Operations ◽  
Set Operations

As the amount of collected spatial information (2D/3D) increases, the real-time processing of these massive data is among the urgent issues that need to be dealt with. Discretizing the physical earth into a digital gridded earth and assigning an integral computable code to each grid has become an effective way to accelerate real-time processing. Researchers have proposed optimization algorithms for spatial calculations in specific scenarios. However, a complete set of algorithms for real-time processing using grid coding is still lacking. To address this issue, a carefully designed, integral grid-coding algebraic operation framework for GeoSOT-3D (a multilayer latitude and longitude grid model) is proposed. By converting traditional floating-point calculations based on latitude and longitude into binary operations, the complexity of the algorithm is greatly reduced. We then present the detailed algorithms that were designed, including basic operations, vector operations, code conversion operations, spatial operations, metric operations, topological relation operations, and set operations. To verify the feasibility and efficiency of the above algorithms, we developed an experimental platform using C++ language (including major algorithms, and more algorithms may be expanded in the future). Then, we generated random data and conducted experiments. The experimental results show that the computing framework is feasible and can significantly improve the efficiency of spatial processing. The algebraic operation framework is expected to support large geospatial data retrieval and analysis, and experience a revival, on top of parallel and distributed computing, in an era of large geospatial data.

Reduction of computational cost in DFT implementation of FIR digital filters

1985 ◽  
Vol 21 (9) ◽  
pp. 364
Author(s):  
G. Martinelli ◽  
G. Orlandi ◽  
P. Burrascano
Keyword(s):  
Digital Filters ◽  
Computational Cost ◽  
Fir Digital Filters

scholarly journals Three different criteria for the design of two-dimensional zero phase FIR digital filters

1993 ◽  
Vol 41 (10) ◽  
pp. 3070-3074 ◽  
Author(s):  
E. Gislason ◽  
M. Johansen ◽  
K. Conradsen ◽  
B.K. Ersboll ◽  
S.K. Jacobsen
Keyword(s):  
Digital Filters ◽  
Two Dimensional ◽  
Fir Digital Filters ◽  
Zero Phase

scholarly journals An $L_1$-Method for the Design of Linear-Phase FIR Digital Filters

2007 ◽  
Vol 55 (11) ◽  
pp. 5253-5266 ◽  
Author(s):  
Liron D. Grossmann ◽  
Yonina C. Eldar
Keyword(s):  
Digital Filters ◽  
Linear Phase ◽  
Fir Digital Filters
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