Sökning: "fft algorithm in vhdl"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden fft algorithm in vhdl.

1. 1. Hardware Implementation of a 32-point Radix-2 FFT Architecture

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Ying Gao; [2015]
   Nyckelord :Radix- 2 FFT; Hardware Implementation; synthesis; place route; prime time; power consumption; Technology and Engineering;

   Sammanfattning : The Fast Fourier Transform (FFT) algorithm has been widely used in the Digital Signal Processing industry as a rudimentary operation to select the specific frequency components of a signal, which has been involved with other time domain signals. In order to fulfill the requirements of executing precise calculations and less power & area consumption, an algorithm with less number of adders and multipliers is used. LÄS MER

3. 2. VHDL Implementation of Flexible Frequency-Band Reallocation (FFBR) Network

   Master-uppsats, Institutionen för systemteknik

   Författare :Abrar Hussain Shahid; [2011]
   Nyckelord :20-channel FFBR network; 20-point FFT IFFT; complex multiplier; polyphase components; radix-2; radix-5;

   Sammanfattning : In digital communication systems, satellites give us world wide services. These satellites should effectively use the available bounded frequency spectrum and, therefore, to carry out flexible frequency-band reallocation (FFBR), on-board signal processing implementation on FFBR network is needed. LÄS MER

4. 3. On Generating Complex Numbers for FFT and NCO Using the CORDIC Algorithm

   Uppsats för yrkesexamina på avancerad nivå, Institutionen för systemteknik

   Författare :Anton Andersson; [2008]
   Nyckelord :FFT; NCO; CORDIC algorithm; CORDIC convergence; CORDIC error analysis;

   Sammanfattning : This report has been compiled to document the thesis work carried out by Anton Andersson for Coresonic AB. The task was to develop an accelerator that could generate complex numbers suitable for fast fourier transforms (FFT) and tuning the phase of complex signals (NCO). Of many ways to achieve this, the CORDIC algorithm was chosen. LÄS MER

5. 4. Sound Level Measurement System

   Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

   Författare :Tore Johansson; [2006]
   Nyckelord :FFT; VHDL; FPGA;

   Sammanfattning : The purpose of this master thesis work is to design a device that measures the loudness of sound for different frequencies. This device is divided in three parts; a microphone that captures the sound, one A/D converter that samples the sound and one FPGA which analyse the data using an FFT algorithm. LÄS MER

7. 5. Improved implementation of a 1K FFT with low power consumption

   Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

   Författare :Petter Näslund; Mikael Åkesson; [2005]
   Nyckelord :Electronics; FFT; synthesis; low power; VHDL.; Elektronik;

   Sammanfattning : In this master thesis, a behavioral VHDL model of a 1k Fast Fourier Transform (FFT) algorithm has been improved, first to make it synthesizable and second to obtain a low power consumption. The purpose of the thesis has not been to focus on the FFT algorithm itself or the theory behind it. LÄS MER