The proposed and existing filters were implemented on Field-Programmable Gate Array (FPGA). The existing Merged Delay Transformed Infinite Impulse Response (IIR) architecture is power efficient but requires larger area. The architecture is based upon Merged Delay Transformation (MDT). This paper describes a decimation filter which is efficient in terms of both the power consumption and the area used. In wireless technologies like Global System for Mobile (GSM), Digital Enhanced Cordless Telecommunications (DECT) and Wi-Fi, decimation filters are essential part of transceivers being used. Jamal, H.Įxpected by 2014 is the 4G standard for cellular wireless communications, which will improve bandwidth, connectivity and roaming for mobile and stationary devices, 4G and other wireless systems are currently hot topics of research and development in the communication field.
The architecture takes advantage of coefficient symmetries in linear phase filters and in polyphase components.Īrea efficient decimation filter based on merged delay transformation for wireless applications The decimation ratio, filter length and filter coefficients can all be changed in real time.
#Multisim 12 tpb full
An efficient memory addressing scheme eliminates the need for power hungry shift registers and allows full reconfiguration. It combines the small size and low power of an ASIC with the programmability and flexibility of a DSP. The architecture is targeted for low power applications requiring medium to low data rate and is ideally suited for implementation on either an ASIC or an FPGA. Word-serial Architectures for Filtering and Variable Rate Decimationįull Text Available A new flexible architecture is proposed for word-serial filtering and variable rate decimation/interpolation. Finally different architectures are compared using number of used LUTs, Registers, Power consumption etc. Prototype is implemented in Virtex V- XC5VLX110T-3ff1136 FPGA kit and simulation results and device utilization reports are generated and tabulated.
#Multisim 12 tpb code
The prototype is designed with MATLAB Simulink model and it is converted to VHDL code using Xilinx system generator. The different decimation filter structures are implemented using cascaded integrator-comb filter to work for the down sampling ratio of 8. IMPLEMENTATION AND COMPARISON OF DIFFERENT CIC FILTER STRUCTURE FOR DECIMATIONįull Text Available This paper briefs an implementation of different CIC filter architectures for decimation. The results obtained show that the overall Sigma-Delta ADC is able to achieve an ENOB (Effective Number Of Bit of 13.71 bits and SNR of 84.3 dB The decimation filter was designed  and  tested  in  Xilinx  system  generator  tool  which  reduces  the  design  cycle  by  directly generating efficient VHDL code. This architecture implements a decimation ratio of 256 and allows a maximum resolution of 13  bits in the output of the filter. This architecture reduces the need for multiplication which is need very large area. The proposed decimation filter design is consists of a second order Cascaded Integrator Comb filter (CIC followed by two finite impulse response (FIR filters.  The first order Sigma-Delta modulator is designed to work at a signal band of 40 KHz at an oversampling ratio (OSR of 256 with a sampling frequency of 20.48 MHz.
#Multisim 12 tpb generator
A newly-developed system-test statistic validates the system under different computer-operating environmentsĭesign and Implementation of Decimation Filter for 13-bit Sigma-Delta ADC Based on FPGAĭirectory of Open Access Journals (Sweden)įull Text Available A 13 bit Sigma-Delta ADC for a signal band of 40K Hz is designed in MATLAB Simulink and then implemented using Xilinx system generator tool. A filter design with finite-impulse response (nonrecursive) was chosen for implementation via direct convolution. This report describes the design selection and implementation process and serves as documentation for the system actually installed. International Nuclear Information System (INIS)Ī two-stage digital filter/decimator has been designed and implemented to reduce the sampling rate associated with the long-term computer storage of certain digital waveforms.
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