Two digital control applications are presented: velocity control of a DC motor and adaptive system identification and control of an automotive alternator. A tuning method is proposed for DC motors. Experimental application for the DC motor illustrates the effectiveness and the simplicity of the proposed method for controller design. Using adaptive system identification, an automotive alternator...

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Because of rapid growing of radio communication technology of late years, importance of automatic classification of digital signal type is rising increasingly. Most of the proposed techniques can only classify low order of digital signals and/or a few kinds of digital signal. They usually require high levels of signal to noise ratio (SNR). This paper presents an expert technique that classifies...

This article provides the author's perspective on the development of digital hearing aids and how digital signal processing approaches have led to changes in hearing aid design. Major landmarks in the evolution of digital technology are identified, and their impact on the development of digital hearing aids is discussed. Differences between analog and digital approaches to signal processing in ...

There has been a tremendous growth for the past few years in the field of VLSI and real time signal processing. Number of signal processing algorithms have been developed which allow the user to process real time signals such as speech to accomplish the signal with desired quality. Development of CMOS technology provides wide selection of low power FPGAs to be used in Digital system design. Thi...

Single-chip, low-power, programmable digital signal processing systems are capable of hosting complete speech processing applications, while consuming a few milliwatts of average power. We present a power management architecture that decreases the average power consumption of these systems to 3–10 microwatts, in applications where speech signals are present with a sufficiently low duty cycle. I...

In this paper, we investigate data converters that exploit the possibilities of advanced digital signal processing. After discussing the necessity and prospects of digital signal processing for data converters to comply with next generation system specifications, we demonstrate three examples of digitally enhanced data converters: time-interleaved analog-to-digital converters, all-digital phase...

The retargetable microcode compiler CBC suited for application specific DSP (ASDSP) system software development is presented. The compiler is capable of generating code for various single instruction architectures. During the retargeting of the compiler a formal description of the target machine is analyzed in order to extract the machine-specific information needed for code generation. The tas...

In our world, communication systems play an important role in day to day life. In wireless and wired communication systems, signals are to be upsampled at the transmitter. Digital up converter (DUC) is a sample rate conversion technique which is widely used to increase the sampling rate of an input signal. The digital up converter converts low sampled digital baseband signal to a pass band sign...