Digital Signal Processing Ganesh Rao Pdf Free Download
. [^jpd]  ganesh rao pdf the signals are analog signals. they are stored at a continuous time value. However, the basic concept can be generalized for digital signal processing is a process that involves: data digitization or sampling (see also sample rate and sampling rate); data quantization to facilitate the storage of the data; and data transformation (see also low-pass filtering and high-pass filtering). The process of digital signal processing can be grouped into three parts
1.
The acquisition of the information.
2.
The storage of the information and processing of the stored information.
3.
The conversion of the stored information into a form that is usable by the end user (for example, processing of voice in an audible form).
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Sampling and quantization.
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The conversion of an analog signal into a digital form in which the values are recorded as a sequence of samples. In digital signal processing, samples are discrete data points in time. The time is measured in unit intervals which are called samples. This can be written as
sampling rate = sampling frequency times the number of samples per unit time. (Hingorani, 2015)
The sampling rate is a very important parameter for digital signal processing. A sample rate of 5 kHz means that the sampling rate is 5000 samples per second. A sampling rate of 10 kHz means that the sampling rate is 10000 samples per second. In many cases, the sampling rate is independent of the frequency. When using digital signal processing on a microcontroller, the sampling frequency must be defined. For an analog-to-digital converter, the sampling frequency is usually the input analog voltage. In most cases, a sample size is not directly defined. It is the number of samples per unit of time that defines the number of bits (figures 2.3.1 and 2.3.3). Figure 2.3.2 shows an analog signal whose sampling rate is 10 kHz and a sampling interval is 1 s. This analog signal is sampled into a series of bits. Figure 2.3.3 shows an analog signal whose sampling rate is 10 kHz and a sampling interval is 100 ms. This analog signal is sampled into a series of bits. Figure 2.3.2 An analog signal
with a sampling rate of 10 kHz and a sampling interval of 1 s
Figure 2.3.3 An analog signal
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