analog data to digital signal encoding

... 35 The Sampling Theorem 39 Digital -to -Analog Conversion 44 Analog Filters for Data Conversion 48 Selecting the Antialias Filter 55 Multirate Data Conversion 58 Single Bit Data Conversion 60 Chapter ... Continuous Signal Processing 243 DIGITAL FILTERS Chapter 14. Introduction to Digital Filters 261 Chapter 15. Moving Average Filters 277 Chapter 16. Windowed-Sinc Filters 285 Chapter 17. Custom Filters ... this book. If you do not wish to be bound by the above, you may return this book to the publisher for a full refund. The Scientist and Engineer's Guide to Digital Signal Processing Second Edition by Steven...

Ngày tải lên: 13/09/2012, 10:21

... can be considered a bandlimited signal. It is this signal that is sampled and converted to a discrete-time signal and coded to a digital signal by the analog- to- digital converter (ADC) that was ... sinusoidal signal, which is a continuous-time signal, and a discrete-time signal. We dis- cussed the basic procedure followed to sample and quantize an analog signal ANALOG AND DIGITAL SIGNAL PROCESSING 25 different ... ability to compress the data by a significant factor and receive the input signal at lower cost and very good quality. To point out the power of digital signal processing theory and the digital signal...

Ngày tải lên: 13/09/2012, 10:21

... ability to compress the data by a significant factor and receive the input signal at lower cost and very good quality. To point out the power of digital signal processing theory and the digital signal ... manufacture of analog filters, we may have to tune each of them to correct for manufacturing tolerances, but there is no such need to test the accuracy of the wordlength in digital filters. Data on digital ... the phone to the BTS in the next cell, which may offer a stronger signal. If no such cell is nearby, the caller is cut off (i.e., will not be able to receive or to send ANALOG AND DIGITAL SIGNAL...

Ngày tải lên: 29/09/2013, 21:20

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Ngày tải lên: 28/06/2014, 06:20

... to an analog signal for people to hear. The process to convert digital signals to analog signals is completed by a DAC. The most commonly used technique to convert digital signals to analog signals ... system into FIGURE 3.4: Quantization. ANALOG- TO- DIGITAL CONVERSION 55 3.3.2 Integration The integration technique uses an integrator, a comparator, and a controller to convert analog signals to digital ... microcontroller MSB LSB Comparators 2.5 v 1/2 1/4 1/8 1/2 n Adder Quantized Analog Signal Scalar Multipliers FIGURE 3.11: A summation method to convert a digital signal into a quantized analog signal. Comparators are...

Ngày tải lên: 29/09/2013, 20:20

... signal. In this section, we first discuss how to convert analog signals into digital signals so that they can be processed using DSP hardware. The process of changing an analog signal to a xdigital ... Processing Signals can be divided into three categories ± continuous-time (analog) signals, discrete-time signals, and digital signals. The signals that we encounter daily are mostly analog signals. ... applica- tions, the input data may already be in digital form and/or the output data may not need to be converted to an analog signal. For example, the processed digital information may be stored in computer...

Ngày tải lên: 17/10/2013, 14:15

... In practice, high-level language tools such 40 INTRODUCTION TO TMS320C55X DIGITAL SIGNAL PROCESSOR 2 Introduction to TMS320C55x Digital Signal Processor Digital signal processors with architecture ... least-significant-bit (LSB) of the data address since data stored in memory is in word units. The 16 Mbytes memory map is shown in Figure 2.6. Data space is divided into 128 data pages (0±127). Each page ... exp2b_4.asm. 74 INTRODUCTION TO TMS320C55X DIGITAL SIGNAL PROCESSOR are added with the contents in the accumulators AC2 and AC3, and the final results are stored back to AC2 and AC3. 2.6 TMS320C55x...

Ngày tải lên: 19/10/2013, 23:15

... Introduction to Telecommunications, Winter 2000 Lecture-22 Digital Transmission Digital Transmission of Analog Data (Baseband Transmission): • Analog voice data must be translated into a series ... domain. To get back the original analog signal we have to convert back the sampled signal to its unique analog form. We could do it if we have taken enough samples of the original signal in ... an analog signal is converted to its digital form. • To obtain either form of pulse modulation we start with sampling. Sampling is the process of taking samples (amplitude) of an analog signal...

Ngày tải lên: 09/12/2013, 16:15

... accumulator ADD Add to accumulator with shift ADDH Add to high accumulator ADDK Add to accumulator short immediate AND Logical AND with accumulator LAC Load accumulator with shift SACH Store high ... high accumulator with shift SACL Store low accumulator with shift SUB Subtract from accumulator with shift SUBC Subtract conditionally ZAC Zero accumulator ZALH Zero low accumulator and load ... diagram, the program ROM is linked to the program bus, while data RAM blocks B1 and B2 are linked to the data bus. The RAM block B0 can be configured either as program or data memory (using the instructions...

Ngày tải lên: 25/12/2013, 06:16

... applied to an analog- to- digital converter (A/D) circuit where thesampledanalogsignal is convertedtoadigitallycodedsignal. The digital signalisthenappliedto c  1999 by CRC Press LLC duced) at an analog ... components and analog signal dynamic r ange c  1999 by CRC Press LLC 5.4 Analog- to- Digital Converter Architectures Theanalog -to- digital( A/D)converter,alsoknown asanADC,encodesananalogsignalintoadigital word. ... can be used directly in digital form or converted back to an analog signal by a digital -to -analog converter (D/A). A digital filtering application may produce an analog signal as its output, whereas...

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