FPGA Implementation of Higher Order FIR Filter

The digital Finite-Impulse-Response (FIR) filters are mainly employed in digital signal processing applications. The main components of digital FIR filters designed on FPGAs are the register bank to save the samples of signals, adder to implement sum operations and multiplier for multiplication of filter coefficients to signal samples. Although, design and implementation of digital FIR filters seem simple but the design bottleneck is multiplier block for speed, power consumption and FPGA chip area occupation. The multipliers are an integral part in FIR structures and these use a large part of the chip area. This limits the number of processing elements (PE) available on the chip to realize a higher order of filter. A model is developed in the Matlab/Simulink environment to investigate the performance of the desired higher order FIR filter. An equivalent FIR filter representation is designed by the Xilinx FIR Compiler by using the exported FIR filter coefficients. The Xilinx implementation flow is completed with the help of Xilinx ISE 14.5. It is observed how the use of higher order FIR filter impacts the resource utilization of the FPGA and it’s the maximum operating frequency

Hematological and Hepatic Profile of Dengue Patients Presenting to A Tertiary Care Hospital in Mumbai

Objective: To assess the pattern of hematological and hepatic involvement in patients of dengue fever. Methods: This study was performed in a tertiary care center in Mumbai, India. 142 patients diagnosed with dengue who were admitted between January 2016 to December 2017 enrolled for the study. Patients Demographic data, clinical history, examination findings, and investigations including complete blood count and liver profile were done. Results: Highest incidence of dengue was seen in the age group of 21-30. More males were affected than females. Highest incidence was seen in monsoon months in Mumbai (August-September). Commonest symptom was fever followed by rigor, chills, bodyache and headache. Altered sensorium was the rarest. In investigations thrombocytopenia was the commonest followed by raised AST and ALT. Conclusion: As Dengue causes significant mortality and morbidity,there is excess burden on healthcare infrastructure of metro cities in India, knowing about the disease behavior is of paramount importance. Doing simple and easily available investigations can be vital in predicting disease severity and need of inpatient and intensive care in Dengue patients