2021RAA....21..248P

Query : 2021RAA....21..248P

2021RAA....21..248P - Research in Astron. and astroph., 21, 248 (2021/October-0)

Design of a multi-function high-speed digital baseband data acquisition system.

PEI X., LI J., WANG N., ERGESH T., DUAN X.-F., MA J. and CHEN M.-Z.

Abstract (from CDS):

A multi-function digital baseband data acquisition system is designed for the sampling, distribution and recording of wide-band multi-channel astronomical signals. The system hires a SNAP2 board as a digital baseband converter to digitize, channelize and packetize the received signal. It can be configured dynamically from a single channel to eight channels with a maximum bandwidth of 4096 MHz. Eight parallel HASHPIPE instances run on four servers, each carrying two NVMe SSD cards, achieving a total continuous write rate of 8 GB s-1. Data are recorded in the standard VDIF file format. The system is deployed on a 25-meter radio telescope to verify its functionality based on pulsar observations. Our results indicate that during the 30-minute observation period, the system achieved zero data loss at a data recording rate of 1 GB s-1 on a single server. The system will serve as a verification platform for testing the functions of the QTT (QiTai radio Telescope) digital backend system. In addition, it can be used as a baseband/VLBI (Very Long Baseline Interferometry) recorder or D-F-engine of correlator/beamformer as well.

Journal keyword(s): instrumentation: miscellaneous - techniques: miscellaneous - site testing

Simbad objects: 1

Full paper

View the references in ADS

Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	PSR B0329+54	Psr	03 32 59.3370698592	+54 34 45.028206408						~	690	1

Query : 2021RAA....21..248P

Basic data :

PSR B0329+54 -- Pulsar

Rad (GB6,MY,...), Psr (PSR,PULS), * (Gaia), NIR (2MASS)

03 32 59.3370698592 +54 34 45.028206408 (Optical) [ 0.4683 0.4608 90 ] A 2020yCat.1350....0G

03 29 11.0039353995 +54 24 38.968936308 [ 0.4683 0.4608 90 ]

144.9949679143101 -01.2203063262975 [ 0.4683 0.4608 90 ]

5.020 -2.503 [0.582 0.657 90] A 2020yCat.1350....0G

0.209 [0.6583] A 2020yCat.1350....0G

G 20.136793 [0.006418] C 2020yCat.1350....0G

J 17.093 [0.193] D 2003yCat.2246....0C

H 16.183 [0.203] D 2003yCat.2246....0C

K 15.556 [0.172] D 2003yCat.2246....0C

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`PSR B0329+54`	`NVSS J033259+543444`	`TGSSADR J033259.1+543442`	`WN B0329.1+5424`
`GB6 B0329+5425`	`PSR J0332+5434`	`TIC 316847481`	`WSTB 32W244`
`2MASS J03325936+5434448`	`PULS CP 0329`	`TXS 0329+544`	`Gaia DR2 445135392719883904`
`MY 032910.9+543447.0`	`PULS CP 0328`	`WN J0332+5434`	`Gaia DR3 445135392719883904`

References (690 between 1850 and 2026) (Total 690)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : PSR B0329+54

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`2MASS J03325936+5434448`	`NVSS J033259+543444`	`WN J0332+5434`	`WN B0329.1+5424`	`Gaia DR2 445135392719883904`
`Gaia DR3 445135392719883904`

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