Research of the Spectrum of a Sequence of Complex Discrete Samples with Sample Rate Variability

2021 ◽  
Author(s):  
Yu. Bulzakov ◽  
T. Vitiazeva ◽  
A. Mikheev
Keyword(s):  
Sample Rate

High Sample Rate Sensor Imaging Technique

2005 ◽  
Author(s):  
B. Sullivan ◽  
V. Coccia ◽  
A. Dentamaro ◽  
J. Roadcap ◽  
D. Mizuno ◽  
...  
Keyword(s):  
Imaging Technique ◽  
Sample Rate ◽  
Rate Sensor

An Efficient Quadratic Conversion Architecture for Real-Time Wideband DDC

2014 ◽  
Vol 527 ◽  
pp. 180-184
Author(s):  
Liu Zhang
Keyword(s):  
Real Time ◽  
Polyphase Filter ◽  
Simulation Results ◽  
Process Cost ◽  
Sample Rate ◽  
Polyphase Filters ◽  
Frequency Mixing

This paper presents an efficient quadratic conversion architecture for real-time wideband DDC, it can move IF signal to baseband in two steps. Firstly, IF signal is moved to baseband nearby with the help of an structure based on polyphase filter, which places mixers after polyphase filters. Then, the signal is moved to baseband through conventional orthogonal frequency mixing. This presented architecture can reduce filter resources and effectively reduce the sample rate and process cost. Finally, simulation results are presented to illustrate the validity of the new structure.

Variable Ratio Sample Rate Conversion Based on Fractional Delay Filter

2015 ◽  
Vol 39 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Marek Blok ◽  
Piotr Drózda
Keyword(s):  
Speech Signal Processing ◽  
Farrow Structure ◽  
Conversion Algorithm ◽  
Window Method ◽  
Voiced Speech ◽  
Fractional Delay ◽  
Sample Rate ◽  
Fractional Delay Filter ◽  
Speech Segments ◽  
Rate Conversion

Abstract In this paper a sample rate conversion algorithm which allows for continuously changing resampling ratio has been presented. The proposed implementation is based on a variable fractional delay filter which is implemented by means of a Farrow structure. Coefficients of this structure are computed on the basis of fractional delay filters which are designed using the offset window method. The proposed approach allows us to freely change the instantaneous resampling ratio during processing. Using such an algorithm we can simulate recording of audio on magnetic tape with nonuniform velocity as well as remove such distortions. We have demonstrated capabilities of the proposed approach based on the example of speech signal processing with a resampling ratio which was computed on the basis of estimated fundamental frequency of voiced speech segments.

A 3.2GHz-sample-rate 800mHz bandwidth highly reconfigurable analog FIR filter in 45nm CMOS

2010 ◽  
Author(s):  
Eoin O'hAnnaidh ◽  
Emmanuel Rouat ◽  
Sarah Verhaeren ◽  
Stephane Le Tual ◽  
Christophe Garnier
Keyword(s):  
Fir Filter ◽  
Sample Rate
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