Features of the Digital Filters Implementation on STM32 Microcontrollers (original) (raw)
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Software Implementation of Digital filters
2008
This thesis proposes to create a MATLAB GUI (Graphical User Interface) to replace an existing laboration exercise in signal processing at Blekinge Institute of Technology. MATLAB is a matrix-based technical computing language widely used throughout the scientific, engineering and mathematical communities. A GUI provides a graphical interface between the program and the user, facilitating ease and frequency of use. Development of a MATLAB GUI for this laboration exercise will benefit the students and increase the awareness towards designing of digital filters. The developed software provides an interface between audio recording and playback hardware and the user when exploring filter design parameters. This software is designed for analyzing digital filter characteristics such as amplitude, phase and pole/zero locations which are useful in designing an appropriate filter. This can be achieved by entering arbitrary filter parameters.
Proceedings - DSD'2005: 8th Euromicro Conference on Digital System Design - Architectures, Methods and Tools, 2005
This paper presents an efficient method for implementation of digital filters targeted FPGA architectures. The traditional approach is based on application of general purpose multipliers. However, performance of multipliers implemented in FPGA architectures does not allow to constructs high performance digital filters. In this paper application of distributed arithmetic is demonstrated. Since in this approach general purpose multipliers are replaced by combinational LUT blocks, it is possible to construct digital filters of very high performance. However LUT blocks can be of considerable size thus advanced synthesis methods have to be used to map them efficiently into FPGA resources. In this paper an application of the functional decomposition based synthesis has been investigated. This method is recognised as the best synthesis method targeted FPGA architectures and allows significant improvements in digital filters implementation. The paper presents many examples confirming that decomposition allows reduction of logic cell utilisation of filter implementation based on distributed arithmetic concept with no performance degradation and even increasing it.
An environment for design and implementation of energy efficient digital filters
Proc. Swedish System-on- …
This paper presents an overview of a design environment for digital filters. We discuss ongoing work as well as previously developed parts of the design flow. The purpose with this design environment is to improve the design efficiency and thereby be able to increase the knowledge in the area of design and implementation of energy efficient digital filters. The design environment includes all design steps required from the filter design downto a physical implementation. The main bottlenecks in the design flow are the filter design, the development of a bit-level design, and the final mapping to a physical layout. By developing efficient optimization methods for the filter design, software generators for VHDL descriptions of a filter implementation, and layout generators for the physical layout, the time required for going from the filter specification to a filter implementation can be reduced significantly, compared to a conventional design flow.
A Review of Techniques for Optimization and Implementation of Digital Filters on FPGA
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022
The use of digital filters extends to various fields. Obtaining a response that is close to the desired response is a major goal of designing digital filters. Designing of filters involves providing the specification, determining coefficients and, then the realization of filter on hardware. This paper provides an insight into the algorithms used for determining optimized filter coefficients, the realization of the filter on hardware and, some methods to reduce the hardware usage by the filter
Design techniques for silicon compiler implementations of high-speed FIR digital filters
IEEE Journal of Solid-State Circuits, 1996
Architecture design techniques for implementing both single-rate and multirate high throughput finite impulse response (FIR) digital filters are explored, with an emphasis on those which are applicable to automated integrated circuit layout techniques. Various parallel architectures are examined based on the criteria of achievable throughput versus hardware complexity. Well-known techniques for reduced complexity and computation time are briefly summarized, followed by the introduction of several new techniques which offer further gains in both throughput and circuitry reduction. An architecture for mirror-symmetric polyphase filter banks is derived which exploits the coefficient symmetry between multiple filters to reduce hardware. Finally, the evolution of a silicon compiler which utilizes all of these techniques is presented, and results are given for compiled filters along with comparisons to other compiled and custom FIR filter chips.
IRJET-Comparative Study of Digital FIR Filter (using Various Windows) on DSP Processor
IRJET, 2020
Digital filters are a very important part of DSP. In fact, their extraordinary performance is one of the key reasons that DSP has become so popular. A unique pipelined architecture for low-area, low-power, and high-throughput implementation of adaptive filter based on distributed using various Windows is presented in this paper. Distributed arithmetic (DA) is performed to design bitlevel architectures for vector-vector Study involves Basics of Digital Filters discussed in Literature review. Architecture of TMS320C50 is discussed in chapter no. 2. MATLAB program is developed for calculating the filter coefficients. These are used in the assembly language program, which is implemented on TMS320C50 DSP Processor. Finally the comparison of features of above said windows is made based upon the obtained results. In future scope of the work, the adaptive filtering and its advantages are discussed. Also the finite word length effects and their remedies on FIR filter performance are discussed. The System is designed in Xilinx ISE 9.1 using Verilog HDL and it is routed using Model Sim 6.3. The Verification of the system's behavior is done using MATLAB 13. DA adaptive filters are advantageous over digital signal processing microprocessor in terms of total area and power consumption.
Optimizing Digital Filter for Effective Signal Processing
Implementing hardware design in Field Programmable Gate Arrays (FPGAs) is a formidable task. There is more than one way to implement the digital FIR filter. Based on the design specification, careful choice of implementation method and tools can save a lot of time and work. MatLab is an excellent tool to design filters. There are toolboxes available to generate VHDL descriptions of the filters which reduce dramatically the time required to generate a solution. Time can be spent evaluating different implementation alternatives. Proper choice of the computation algorithms can help the FPGA architecture to make it efficient in terms of speed and/or area.
Performance Analysis of FIR Digital Filter Design Technique and Implementation
The purpose of this study is to design and analyze a Finite Impulse Response (FIR) filter to program a Pre-modulation filter for avionic application. In recent times more development is taking place in digital signal processing field (DSP). In DSP applications, more concentration is to reduce order of the filter to achieve high speed and low power, which results in less hardware requirements. In this paper various FIR filter design techniques are used and compared with optimal design techniques. Optimization technique which is used to design filter is McClellan-Parks which is based upon Remez exchange algorithm. Finally codes of different filter structures are implemented on a Field Programmable Gated Array (FPGA) and there hardware requirements are compared.
ASIC DSP compiler for optimized synthesis
International Conference on Signal Processing, 2000
This paper presents a high level DSP architecture compiler for cycle-constrained filters and datapath applications. The tool offers an easy way to get, from an equation representation of a filter, a synthetisable VHLD description of an application specific DSP architecture. Inputs of the DSP compiler are an equation file to define the filter structure and a resource definition file to specify the available resource units. The equation syntax is very comfortable. Resource mapping, scheduling, binding and furthermore the quantification of each operation is usually performed automatically, but can be controlled by the user. The result is a very fast filter synthesis time combined with highest flexibility for the users.