Abdullah Al-Mamun

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In most agricultural systems, one of the major concerns is to reduce the growth of weeds. In most cases, removal of the weed population in agricultural fields involves the application of chemical herbicides, which has had successes in increasing both crop productivity and quality. However, concerns regarding the environmental and economic impacts of(More)
Cognitive Radio (CR) has been proposed as a promising and effective technology to improve radio spectrum utilization. It can change its transmitter parameters depending on the environment in which it operate based on interaction. In CR, a number of different methods of spectrum sensing are used to identify the presence of signal transmission. Among them,(More)
Path following controller, designed according to the principle of following a virtual robot, for a gyroscopically stabilized single-wheeled robot (gyrobot) is presented in this paper. Linear and angular velocities of the virtual robot are pre-computed such that it follows the desired path. These velocities also constitute the feed-forward component of the(More)
In conventional cropping systems, removal of weed population tends to rely heavily on the application of chemical herbicides, which has had successes in attaining higher profitability. However, concerns regarding the adverse effects of excessive herbicide applications have prompted increasing interests in seeking alternative weed control approaches. Rather(More)
Cognitive radio (CR) has been proposed as a promising and effective technology to improve radio spectrum utilization. The primary objective of the CR is to handle the non-interference rules with any primary users (PUs). Highly sensitive and optimal spectrum sensing detectors are required in order to avoid harmful interference to PUs. Multitaper spectrum(More)
One of the obstacles to achieving high recording density in hard disk drives (HDDs) is servo performance limitation.As HDD is a mass produced commodity, the challenge is not only achieving high performance for nominal models but with all the uncertainties and variations in HDD models for thousands of HDDs in a batch of production line. This paper presents(More)
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