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| Year : 2009 | Volume
: 55
| Issue : 6 | Page : 259 |
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Scanning the Issue
Shiban K Koul
Editor in Chief, IETE Journal of Research, India
| Date of Web Publication | 18-Jan-2010 |
Correspondence Address:
Shiban K Koul
Editor in Chief, IETE Journal of Research
India
 DOI: 10.4103/0377-2063.58977
How to cite this article:
Koul SK. Scanning the Issue. IETE J Res 2009;55:259 |
The current issue of the IETE Journal of Research, Vol.55, No.6 (Nov-Dec 2009) contains nine articles. These articles present the ongoing research and developments taking place in the broad areas of microelectronics, signal processing, communications, electromagnetics and biomedical engineering.
The first paper "FPGA-based low power audio subword sorter unit" gives an HDL design for audio data permutation sorter that is architecturally efficient and can be useful in providing security for diverse applications. A modified enhanced merge sorter network for this purpose is explained and its implementation details are discussed in this paper.
The next paper on "Hybrid particle swarm optimization and unscented filtering technique for estimation of non-stationary signal parameters" presents an adaptive unscented Kalman filter for parameter estimation of non-stationary signals. The paper gives a method using particle swarm optimization technique to improve the tracking of the filter in low SNR conditions.
In the paper "Time and angle arrival statistics of mobile-to-mobile communication channel employing circular scattering model," the authors have studied the performance of geometric-based channel model for mobile-to-mobile communications. The probability density functions for time of arrival and angle of arrival variables are derived analytically and verified with simulation studies.
The paper "High speed Vedic multiplier for digital signal processors" provides a modular architecture for fast multiplication which is coded in VHDL. The performance is compared with modified Booth Wallace multiplier.
In the paper "Simulation study on type 1 diabetic patient", a model for blood glucose regulation using control theory approach is presented, and studied in comparison with subject measurements. The physiologic model of diabetes patients is developed based on 19 states comprising glucose dynamics, insulin dynamics and glucagons dynamics. An uncertainty analysis is done to account for patient-dependent variations in performance.
The next paper "Successful design of singly-fed wideband and high gain microstrip antennas" presents design, simulation and experimental results of a square microstrip antenna with two nearly square slots. It is shown that this antenna results in significant bandwidth enhancement and size reduction. The antenna is designed for WLAN applications.
The paper "Nature of dopants and effects on sensitivity of SnO 2 based gas sensor" describes the fabrication of thick film SnO 2 sensor. The testing of the sensor for different concentrations of LPG and methane in test chamber is described in terms of sensitivity as a function of ppm and in response to Pd and Pt doping of the sensor. Such sensors can be useful in quantifying the degree of pollutants in the environment.
In "Metrics to define probability of interception of conventional, frequency-hopping, spread spectrum radars," the authors define a term "probability of interception" (PI) as a measure of the low probability of intercept characteristics of a radar. The term is defined for conventional radars, frequency-hopping radars and spread-spectrum radars. An understanding of PI is provided through simulation examples.
In the last paper "A 1.5V, 0.85 -13.35 GHz MMIC low noise amplifier design using optimization technique", the authors have used power-constrained synthesis technique to synthesize a broadband low-noise amplifier that simultaneously meets design specifications such as bandwidth, noise figure, power gain and power consumption. The design is based on 0.15 micron 85 GHz PHEMT process.
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