A Frequency Domain FIR Filter Implementation Method for 3G Communication Systems

Ojail, Maroun; Chevobbe, Stéphane; David, Raphaël; Demigny, Didier

doi:10.1109/icdt.2008.9

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…For example, the number of available multiplication blocks in the use of field-programmable gate arrays (FPGA) determines the filtering limits. Digital filters based on digital signal processing (DSP) techniques are widely used in many scenarios and applications like radio signal detection and ranging, e.g., in software-defined radio, cell phone communication systems, and satellite receivers [11][12][13][14][15]. Such filters can be implemented on various hardware like FPGA, microcontrollers (µC), system-on-chip (SoCs), or application-specific integrated circuits (ASICs) [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

IR detection module with integrated real-time FIR filter implemented in FPGA

Achtenberg,

Mikołajczyk,

Bielecki

2024

International Journal of Electronics and Telecommunications

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Infrared detectors are usually characterized by 1/f noise when operating with biasing. This type of noise significantly reduces detection capabilities for low-level and slow signals. There are a few methods to reduce the influence of 1/f noise, like filtering or chopper stabilization with lock-in. Using the first one, a simple 1st-order analog low-pass filter built-in amplifier usually cuts off 1/f noise fluctuations at low frequencies. In comparison, the stabilization technique modulates the signal transposing to a higher frequency with no 1/f noise and then demodulates it back (lock-in amplifiers). However, the flexible tuned device, which can work precisely at low frequencies, is especially desirable in some applications, e.g., optical spectroscopy or interferometry. The paper describes a proof-of-concept of an IR detection module with an adjustable digital filter taking advantage of finite impulse response type. It is based on the high-resolution analog-to-digital converter, field-programmable gate array, and digital-to-analog converter. A microcontroller with an implemented user interface ensures control of such a prepared filtering path. The module is a separate component with the possibility of customization and can be used in experiments or applications in which the reduction of noises and unexpected interferences is needed.

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Section: Introductionmentioning

confidence: 99%

IR detection module with integrated real-time FIR filter implemented in FPGA

Achtenberg,

Mikołajczyk,

Bielecki

2024

International Journal of Electronics and Telecommunications

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Low complexity multiobjective finite impulse response filter design using Salp swarm algorithm and its improved version

Srivastava

Dwivedi

Nagaria

2021

Int J Numerical Modelling

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Recent trend indicates that the assessment of low complexity is crucial for an effectual design of digital filter. Earlier the existing algorithms solely focused on reducing the pass band ripples and the stop band ripples in spite of the requirement of low implementation complexity in finite impulse response (FIR) filter design. In this regard, the optimization‐based FIR filter using multiobjective improved Salp swarm optimization algorithm have been designed. The proposed method not only minimizes the ripples of pass band and stop band but also minimizes the transition band, number of sparsity, which is used to implement a FIR filter that abides the specified frequency. The nondominated solution of filter design has a set of an optimum solution as pareto front that maintains the trade‐off between the various specifications. The designed FIR filter has been compared with other reported method to validate the applicability of the proposed method. The evaluation and analysis have been performed regrading minimum pass band ripples, minimum stop band ripple, minimum transition band, and implementation complexity. To prove the practical applicability of the proposed method, the designed FIR filters have been implemented in Xilinx ISE14.7 (Virtex‐VII) environment. The comparison result shows that the proposed method performs better than all other reported method in achieving minimum ripples and implementation complexity.

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