Completed Master in EE
Finally completed my master project thesis.
Leave a Comment March 25, 2010
FM RF to IF Chip
Look at this tiny chip. It is a RF to IF downconverter before demodulator. Today’s chips are getting smaller and smaller. It has a build in adjustable LNA, mixer, filter. I did not get the FM demodulator since I am planning to use this chip to implement an FM receiver on software side. This FM Software Define Radio will be implemented on Virtex II FPGA!… It will be fun to see it working.
Leave a Comment May 23, 2009
ADC DAC 2 MSPS Implementation
Implemented ADC DAC 2 MSPS on Virtex II Pro FPGA. This is a 10 times higher in sampling rate compare to the previous post ADC DAC. The sampling rate is 2 MSPS and can go up to 4 MSPS.
So by using System Generator and a verilog blackbox I implemented an FIR high-pass filter and the result is very clean. high_pass_filter_scope_captures
Leave a Comment May 12, 2009
MATLAB Error Integer too large in context
I recently experienced this error while using MATLAB. Error using maple… Error integer too large in context … This happens when I try to simulate an ESPRIT DOA estimation using atan function with symbolic expressions. The solution is to use:
clear maplemex % this works for me, this basically clears the Maple workspace
% and reinitializes the Maple kernel
Leave a Comment April 18, 2009
Microcontroller App. Freq and Period Measurements
A simple app. using PIC18F4520 to display frequency and period measurement of an analog square wave input. Code is written in C, interrupts and internal timer1 are utilized. Display is on 2 lined LCD screen.
Schematic:
Leave a Comment March 18, 2009
DSB-SC Modulation
DSB-SC modulation implemented using Analog Devices ADC DAC 200 ksps on Virtex 2 FPGA.
Leave a Comment February 21, 2009
Microcontroller from Microchip
Just got this microchip microcontroller sdk today. It’s the 18 series. I can’t wait to start playing with it.
2 Comments January 14, 2009
Angle of Arrival Estimation
I have recently join a research project group whom are working on antenna angle of arrival estimation. I believe the research project has been in its 4th year and I am currently learning on all methods or approaches to estimate the angle of arrival of the desired signals. This is something that I am interested in but it is not going to be my thesis. I am working on something related to Xilinx FPGA for my thesis.
Leave a Comment January 14, 2009
Master Thesis
I am starting to work on my master project/thesis now. I am feeling energetic and cannot wait to get things to work! I do have a topic in mind but may change as I progress.
Leave a Comment January 6, 2009
ADC DAC Chipsets
I was testing on this ADC DAC chipsets at the Lab. Analog sent two each with next day delivery for free. Otherwise those can run to about 200 bucks. Kudos to Analog.
Leave a Comment January 5, 2009