R. Sakthivel

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The Rao-Blackwellized particle filter (RBPF) and FastSLAM have two important limitations, which are the derivation of the Jacobian matrices and the linear approximations of nonlinear functions. These can make the filter inconsistent. Another challenge is to reduce the number of particles while maintaining the estimation accuracy. This paper provides a(More)
This paper addresses the problem of simultaneous localization and map building (SLAM) using a neural network aided extended Kalman filter (NNEKF) algorithm. Since the EKF is based on the white noise assumption, if there are colored noise or systematic bias error in the system, EKF inevitably diverges. The neural network in this algorithm is used to(More)
Rao-Blackwellized particle filter and FastSLAM have become popular tools to solve the simultaneous localization and mapping (SLAM) problem. However, the above techniques have two important potential limitations, which are the derivation of the Jacobian matrices and the linear approximations to the nonlinear functions. Also, one of the major challenges of(More)
Traditional fast Discrete Cosine Transforms (DCT)/ Inverse DCT (IDCT) algorithms have focused on reducing the arithmetic complexity. In this manuscript, we implemented a new architecture simultaneous for image compression and encryption technique suitable for real-time applications. Here, contrary to traditional compression algorithms, only special points(More)
In this paper, an H-bridge inverter topology with reduced switch count technique is introduced. This technique reduces the number of controlled switches used in conventional multilevel inverter. To establish a single phase system, the proposed multilevel inverter requires one H-bridge and a multi conversion cell. A multi conversion cell consists of three(More)
Image acquisition and transmission stands challenging in applications such as medical imaging, underwater imaging, image segmentation and face recognition where images are often corrupted by impulse noise. The key aim is to reduce the impulse noise effectively by less number of computations, less memory, less power consumption and yet achieving good visual(More)
Flip-flop plays a major role in designing a synchronous circuits and memory. In this paper we have shown the comparison of performance for various circuits of flip flops, master-slave flip flops and transmission gates. FFs are mostly used to collect the group of data for a storage purpose and the performance includes delay, area minimization and power(More)
This paper proposes and implements an energy efficient, high speed pipelined Multiply and Accumulate (MAC) architecture for DSP applications. A controller has been designed to detect the input pattern such that it bypasses multiplier and accumulator units depending on the consecutive input bits. This architecture is used for both signed and unsigned(More)