Investigation of multirate techniques for digital generation of transmitter signals for TIGER radar

Salim, T.; Devlin, John; Whittington, J.

doi:10.1109/inmic.2001.995308

Cited by 5 publications

(2 citation statements)

References 7 publications

(7 reference statements)

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“…The modulated Gaussian pulse can be generated with a different carrier frequency other than what is mentioned in the above example. This can be achieved by changing the sampling rate and filter coefficients accordingly [5].…”

Section: Direct Conversion Transmittermentioning

confidence: 99%

An efficient serial distributed arithmetic algorithm for FPGA implementation of digital up conversion

et al. 2005

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Section: Direct Conversion Transmittermentioning

confidence: 99%

An efficient serial distributed arithmetic algorithm for FPGA implementation of digital up conversion

et al. 2005

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“…For the digital TIGER radar system, the analog amplifier of the radar remains the same [1]. Therefore a digital to analog converter is required to convert the digital signal into the analog domain.…”

Section: Role Of Dacmentioning

confidence: 99%

Analog Conversion for FPGA Implementation of the TIGER Transmitter using a 14 bit DAC

Salim

Devlin

Whittington

Second IEEE International Workshop on Electronic Design, Test and Applications

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FPGA is a potential medium for DSP implementation of direct conversion transmitters and receivers. However analog interface cannot be ruled out since amplification and other tasks are still in the analog domain. In a previous work, input Gaussian pulses are oversampled and filtering operation is performed to generate TIGER output pulses. A fast DAC with word precision of at least 12 bit can provide the required dynamic range (approx. 72dB) for the system. Analog Devices offer a surface mounted device (SMD) DAC with 14 bit word size and is used in this work to produce the analog signals. An analog reconstruction filter follows the DAC outputs to reduce the digital effects of the sampling clock. In this paper we first describe digital effects of a DAC using a simple tone. The spectral distance in digital sampling components can be increased with a digital interpolation filter. This relaxes constraint on Analog Reconstruction Filter (ARF) which can be realized with a few LC components. Visual HDL and Xilinx Tools are used to derive a digital pulse through the DAC.

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A Modified Word Serial Bit Parallel Algorithm for FPGA Implementation of Digital Ionospheric Radar

Salim¹,

Devlin²,

Whittington³

2005 Asia-Pacific Microwave Conference Proceedings

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Investigation of multirate techniques for digital generation of transmitter signals for TIGER radar

Cited by 5 publications

References 7 publications

An efficient serial distributed arithmetic algorithm for FPGA implementation of digital up conversion

An efficient serial distributed arithmetic algorithm for FPGA implementation of digital up conversion

Analog Conversion for FPGA Implementation of the TIGER Transmitter using a 14 bit DAC

A Modified Word Serial Bit Parallel Algorithm for FPGA Implementation of Digital Ionospheric Radar

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