Results 1 to 10 of about 129,867 (356)

A digital-receiver for the MurchisonWidefield Array [PDF]

Experimental Astronomy, 2015
An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-polarized aperture-array elements (tiles) operating between 80 and 300\,MHz, with a total processed ...
Prabu, T, Srivani, KS, Roshi, DA, Kamini, PA, Madhavi, S, Emrich, D, Crosse, B, Williams, AJ, Waterson, M, Deshpande, AA, Shankar, NU, Subrahmanyan, R, Briggs, FH, Goeke, RF, Tingay, SJ, Johnston-Hollitt, M, Gopalakrishna, MR, Morgan, EH, Pathikulangara, J, Bunton, JD, Hampson, G, Williams, C, Ord, SM, Wayth, RB, Kumar, D, Morales, MF, deSouza, L, Kratzenberg, E, Pallot, D, McWhirter, R, Hazelton, BJ, Arcus, W, Barnes, DG, Bernardi, G, Booler, T, Bowman, JD, Cappallo, RJ, Corey, BE, Greenhill, LJ, Herne, D, Hewitt, JN, Kaplan, DL, Kasper, JC, Kincaid, BB, Koenig, R, Lonsdale, CJ, Lynch, MJ, Mitchell, DA, Oberoi, D, Remillard, RA, Rogers, AE, Salah, JE, Sault, RJ, Stevens, JB, Tremblay, S, Webster, RL, Whitney, AR, Wyithe, SB   +57 more
exaly   +12 more sources

Anatomy of a Digital Coherent Receiver

IEICE Transactions on Communications, 2014
Digital coherent receivers have gained significant attention in the last decade. The reason for this is that coherent detection, along with digital signal processing (DSP) allows for substantial increase of the channel capacity by employing advanced detection techniques.
Robert Borkowski, Darko Zibar, Idelfonso Tafur Monroy   +2 more
exaly   +5 more sources

Low frequency digital receiver [PDF]

RADIOFIZIKA I ELEKTRONIKA, 2015
Application of digital devices removes many experimental obstacles, as the physical elements are replaced by their virtual computer analogs. A receiver is realized in an ordinary computer supplied by the ADC (analog-digital converter) board and by the appropriate soft. Such a device appears to be much cheaper than an analog one, since the computers and
Y. P. Galyuk
openaire   +2 more sources

A channelized digital ultrawideband receiver [PDF]

IEEE Transactions on Wireless Communications, 2003
A channelized digital ultrawideband (UWB) receiver that efficiently samples the UWB signal at a fraction of the chip frequency is proposed. The received signal is channelized in the frequency domain by employing a bank of mixers and low-pass filters.
Won Namgoong
openaire   +3 more sources

Digital filters for coherent optical receivers

Optics Express, 2008
Digital filters underpin the performance of coherent optical receivers which exploit digital signal processing (DSP) to mitigate transmission impairments. We outline the principles of such receivers and review our experimental investigations into compensation of polarization mode dispersion.
Seb J. Savory
openaire   +3 more sources

Intermediate Frequency Digital Receiver Based on Multi-FPGA System [PDF]

Journal of Electrical and Computer Engineering, 2016
Aiming at high-cost, large-size, and inflexibility problems of traditional analog intermediate frequency receiver in the aerospace telemetry, tracking, and command (TTC) system, we have proposed a new intermediate frequency (IF) digital receiver based on
Chengchang Zhang, Lihong Zhang
doaj   +2 more sources

MULTIFUNCTIONAL DIGITAL RECEIVER-SPECTROMETER

Radio physics and radio astronomy, 2014
A new two-channel digital receiver-spectrometer whose parameters and functional capabilities are optimized to provide its effective use in decameter telescopes, as well as in other systems where high precision and synchronization of measurements are required, is described.
O. Y. Vasilyev, A. I. Kuzin, A. A. Kravtsov, E. V. Bulakh, V. V. Vynogradov, D. M. Vavriv   +5 more
openaire   +4 more sources

Power Scalable Angle of Arrival Estimation Using Pilot Design With Orthogonal Subsequences

IEEE Open Journal of the Communications Society, 2021
Energy efficient array processing is critical to implement feasible solutions for directional communication in a mmWave channel. MmWave channels are highly susceptible to blockage and require frequent angle of arrival (AoA) estimation.
Mahbuba S. Ullah, Ahmed Tewfik, Robert W. Heath   +2 more
doaj   +1 more source

Design of a digital CDMA receiver [PDF]

Proceedings of the 2003 conference on Asia South Pacific design automation - ASPDAC, 2003
In this work, an attempt has been made to design a Digital Signal Code Division Multiple Accesses Receiver using VHDL [1] [2] and synthesize using Mentor Graphics tools. The receiver is designed for a maximum of three users as per the design specification given for the contest.
I. Vijay Kumar, M. B. Srinivas
openaire   +1 more source

CipherCAD Testbed [PDF]

Radioengineering, 2021
The CipherCAD testbed is a unique workplace for the development, design, testing, verification and teaching of the communications systems. CipherCAD is at the core of the workplace, which is an application primarily designed for solving cryptographic ...
V. Platenka, A. Mazalek
doaj