Multidimensional-DSP Beamformers Using the ROACH-2 FPGA Platform

Multidimensional-DSP Beamformers Using the ROACH-2 FPGA Platform

Abstract: Antenna array-based multi-dimensional infinite-impulse response (IIR) digital beamformers are employed in a multitude of radio frequency (RF) applications ranging from electronically-scanned radar, radio telescopes, long-range detection and target tracking. A method to design 3D IIR beam filters using 2D IIR beam filters is described. A cascaded 2D IIR beam filter architecture is prop...

Software radio and dynamic reconfiguration on a DSP/FPGA platform

This paper discusses the implementation of modulation chains for multi-standard communications on a dynamically and partially reconfigurable heterogeneous platform. Implementation results highlight the benefit of considering a DSP/FPGA platform instead of a multi-DSP platform since the FPGA supports efficiently intensive computation components, which reduces the DSP load. Furthermore, partial d...

An adaptive microphone array with good sound quality using auxiliary fixed beamformers and its DSP implementation

This paper presents an adaptive microphone array using two auxiliary fixed beamfomers for good sound quality. One auxiliary fixed beamfomer is introduced in the target signal path to avoid suppression of high-frequency components in the total output. The other auxiliary fixed beamfomer is used for adaptation-mode control to eliminate the hysteresis in the relationship between signal direction a...

FPGA Based Implementation and Comparison of Beamformers for CDMA2000

For the integration of smart antennas into third generation code division multiple access (CDMA) base stations, it still remains as a challenging task to implement smart antenna algorithms on programmable processors. In this paper, we study implementations of some CDMA compatible beamforming algorithms, namely least mean square (LMS), constant modulus (CM), and space code correlator (SCC) algor...

A Practical Approach to Dsp Algorithms Using Fpga Devices