SIGNAL PROCESSING LAB OUTCOME After Signals and Systems lab in last semester we were introduced with Signal Processing lab this semester. In signal processing lab we were supposed to implement the codes that were developed in C language (for some experiments) on DSP board. For both the labs all the experiments were performed under the guidance of Talele Sir. Sir had already shared the codes with us so that we can refer them and understand the logic and how to implement on the board. The most important thing that this lab taught me was the difference between a DSP processor and a general processor. Most general purpose microprocessors are present in personal computers. They are often used for computation, text editing, multimedia display, and communication over a network. Other microprocessors are part of embedded systems. These provide digital control over practically any technology, such as appliances, automobiles, cell phones, industrial process
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EXPERIMENT NUMBER 9 Applications of DSP In this experiment, we found out a patent from the internet. Our group took " Optical sensors for use in Vital sign monitoring". We we're made to write review for this patent. Our patent was published in United States of America office. The patent was about how different sensors can be used in a patient to monitor it's different signs in the hospitals without using large, bulky instruments. So that patient can do the basic activities like eating, reading easily.
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EXPERIMENT NUMBER 8 Sensor Interface The aim of this experiment was to get different outputs from different sensor and we saw those outputs on DSO. Here, we have a long sequence data whose response has to be an impulse function. An ADC takes an analog signal and converts it into a binary one, while a DAC converts a binary signal into an analog value.Applications for DACs span a wide range, from consumer audio to precision instrumentation, and everything in between. We checked the codes on the texas instrument DSP board. The session theory was already done during lectures. So it become easy to make codes for the program.
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EXPERIMENT NUMBER 7 ADC and DAC The aim of this experiment was to develop programs to generate sawtooth, triangular and sinusoidal waveform on a DSO . The DSP board that we have used had a 4 channel DAC and 2 channel ADC. We gave a variable voltage to one channel of the ADC via a potentiometer (the voltage was positive) and then using the digital value we gave it to the DAC and observed the output on the DSO. We checked the codes on the texas instrument DSP board. The session theory was already done during lectures. So it become easy to make codes for the program.
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EXPERIMENT NUMBER 6 LED binary counter The aim of this experiment was to develop programs on LED binary counter. We have used flash programming to run this. We have seen the output also seen on flash programming. We checked the codes on the texas instrument DSP board. The session theory was already done during lectures. So it become easy to make codes for the program.
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EXPERIMENT NUMBER 5 OAM AND OSM The aim of this experiment was to develop programs on OAM, OSM. Here, we have a long sequence data whose response has to be an impulse function. In OAM, we decompose the long input sequence into smaller segement of lesser length . we developed the codes on Code composer studio. We have seen the output also on code composer studio. We checked the codes on the texas instrument DSP board. The session theory was already done during lectures. So it become easy to make codes for the program.
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EXPERIMENT NUMBER 4 DFT AND FFT The aim of this experiment was to develop programs on DFT and FFT. DFT enables us to find spectrum of a finite duration signal x(n). FFT is an algorithm that samples a signal over a period of time . we developed the codes on Code composer studio. We have seen the output also on code composer studio. We checked the codes on the texas instrument DSP board. The session theory was already done during lectures. So it become easy to make codes for the program.