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Lung is one of the vital respiratory organs. If lung is not healthy, it can cause the air flow into the lung reduced. To analyze the condition of lung is used respiration signal that measured using piezoelectric sensor that placed on the chest. Output of piezoelectric sensor is 50 mV, so it needs an amplifier circuit, low pass filter and notch filter, clamper and microcontroller to process the data...
In this paper, implementation of a decimator using fully parallel technique for hearing aid applications is considered. A hearing aid is helpful for the people having hearing loss to hear more precisely in both quiet and whirring situations. It helps a person with hearing loss to listen and communicate by making sounds audible and clearer. The technique employed for the design of the filter is Canonic...
An adaptive filter is a digital filter that self adjusts its transfer function according to an optimizing algorithm which is most frequently Least Mean Square (LMS) algorithm. Due to the complexity of adaptive filtering most digital filters are FIR filter. There are numerous applications of adaptive filters like noise cancellations, echo cancellation, system identification, inverse system modeling,...
Over the last years, much effort has been made toward developing computerized methods to detect seizures in patients by scientists. This paper is to present a Field Programmable Gate Array (FPGA)-based Fir Filter Design for Biomedical signal processing. The Electroencephalography (EEG) has been the most dependable tool used for biomedical signal processing. The digital filter is used to filter discrete...
In today's modern world heart diseases is common not only for the elder people but also for the younger people. ECG is one of the important biomedical signal which is generally used to diagnosis the human heart. In this work hardware is designed and implemented to acquire a real time the electrocardiogram (ECG) signal and many medical practitioners used this technique for diagnosing but while recording...
Present paper deals with design and development of digital FIR filters. Heart diseases, which are one of the death reasons, are among the several serious problems in this century and as per the latest survey, 60% of the patients die due to Heart diseases. Electrocardiogram (ECG) signal plays a vital role in the monitoring and diagnosis of the health conditions of human heart. The basic ECG signal...
In digital signal processing area, Field Programmable Gate Array (FPGA) is becoming the ideal platform of Finite Impulse Response (FIR) filter design with its excellent features. However, traditional development method is difficult and costs a lot of manpower and time. In this paper, we accomplish the FIR digital filter design with high-level synthesis method, using VIVADO HLS, DSP Builder and LabVIEW...
Speech signal varies from a frequency range of 300Hz to 4000Hz and can be filtered using various types of filters. This paper demonstrates the design of Equiripple Bandpass FIR filter specific to the application of speech signal by optimizing the order, first stopband frequency and second stopband frequency of the filter simultaneously using MATLAB Filter Design & Analysis Tool and mathematical...
Today are used electrocardiograms with sensors, which require a wild-sprays to ensure electrical contact between sensor and skin. Such devices are for set to time-consuming and problematic for long term record. The lack of principle eliminates the use of non-contact sensing. The object was to construct such an ECG device, which has been designed and constructed under the project. On the other hand,...
The paper presents the modeling of subsea coaxial cable as a FIR filter on Matlab. The subsea coaxial cables are commonly used in telecommunication industry and, oil and gas industry. Furthermore, this cable is unlike a filter circuit, which is a "lumped network" as individual components appear as discrete items. Therefore, a subsea coaxial network can be represented as a digital filter...
In this paper,based on the principles and structure of the fir filter to design the fir filter. Used the tools of filter design and the signal spectrum analysis in MATLAB to design and analyse 16-order fir filter,and determined the filter coefficients, finally, used Verilog HDL language to code, and used its software of Quartus II to simulate. The result of the simulation shows that the results of...
This paper designs a kind of filters used in audio processing of the DAC. Through the study of FIR filter parameters, this paper completed the over-sampling of the audio filter, so that over-sampling rate achieves 128 times. It also use the analysis tools in MATLAB fdatool to design filter. From the simulation waveform of it, the noise of signal ratio is achieved more than 100dB, and it can better...
This paper presents a new idea applied to adaptive filters for harmonic detection in shunt active power filters. Improve the speed of convergence of the adaptive filter and reduces the steady-state error are the finals objectives of the strategy. Two cases are presented and discussed, one with a finite impulse response (FIR) adaptive filter with 32 coefficients and another with an adaptive notch filter...
This paper describes the design of Transposed Form FIR filter implemented in the Spartan-II and Virtex-E family of FPGAs. The design is an 8-tap filter based on 16-bit input samples and 14-bit signed coefficients. The basic building blocks of the filter are KCMs, Adders, Registers, and a delay-locked loop. All the 14-bit coefficient factors are stored with an 18-bit word size in the ROM. The program...
In this paper, a new method for the detection of electrical arc faults is presented It is possible, by using a digital signal processor programmed with Matlab/Simulink, to create a system able to detect the presence of unwanted frequencies in the distribution network. Those frequencies are often generated by an electrical arc in the network.
This paper presents a design environment for efficiently generating application-specific intellectual property (IP) cores for system level signal processing algorithms. We present our view of a framework that combines common electronic design automation (EDA) tools to alleviate the designer from manually constructing the hardware models and analyzing their performance. We use our framework to efficiently...
Nowadays in wireless and audio application the use of efficient digital filter is increasing because of the speed of conversion and the less hardware requirement. The hearing aid application needs an efficient methodology, fast performance, less hardware, and less power consuming digital filter. The decimation filter provides these objectives. This paper presents design and implementation of the three...
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