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Automatic Speaker Recognition technology has recently been implemented in large number of commercial areas successfully. Speaker recognition is being used in voice based biometrics; voice controlled appliances, security control for confidential information, remote access to computers and many more interesting areas. This paper introduces text dependent(More)
A real-time operating system (RTOS) provides a platform for the design and implementation of a wide range of applications in real-time systems, embedded systems, and mission-critical systems. This paper presents a formal design model for a general RTOS known as RTOS+ that enables a specific target RTOS to be rigorously and efficiently derived in real-world(More)
A real-time operating system (RTOS) provides a platform for the design and implementation of a wide range of applications in real-time systems, embedded systems, and mission-critical systems. This paper presents a formal design model for a general RTOS known as RTOS+ that enables a specific target RTOS to be rigorously and efficiently derived in real-world(More)
Human body channel, a candidate of PHY layer adopted by the latest IEEE standards (IEEE 802.15.6), has been investigated for applications with on-body communication. The study covers frequencies range from 100Hz to 1GHz and channel lengths from 65mm to 1.6m. After analyzing the measurement results, a suitable frequency range for body area network from 10(More)
Speech recognition system needs to perform a high complex calculation and short time to complete it. This is a big challenge for the real-time systems. However, using a simple and fast algorithm may do this task for the slow systems. Thus, the main objective of this paper is to design and implement a Real-Time Arabic Speech Recognition system using MATLAB(More)
This paper presents the design and measurement results of a sub-1 V, wide-tuning range, monolithic voltage-controlled oscillator (VCO). The LC-based VCO can operate at a supply voltage as low as 0.8 V. The top-biased PMOS, with capacitor connected in parallel, is used in order to decrease the noise contribution in the oscillated frequency even at a low(More)
A comparative study on 4 and 16-bit digitally controlled CMOS oscillator (DCO) in terms of<lb>output frequency is presented in this paper. DCO circuits have been simulated in SPICE with 0.<lb>5?m technology with a 5V supply voltage. The structure of 4-bit DCO uses digital to analog<lb>converter and injection locked oscillator (ILO) circuits. The 16-bit DCO(More)
This paper presents a look-up table based, configurable and serial-parallel scheduled π-rotation LDPC decoder. By using the proposed permutation mapping scheme together with an optimized normalized min-sum decoding algorithm, the LDPC decoder structure and circuit resource requirements can be greatly reduced. Furthermore, the proposed approach is compatible(More)
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