mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2017


 

Stellenbosch student presents paper on SA satellite at conference
4 October 2006, Telecoms, Datacoms, Wireless

A post-graduate student at the University of Stellenbosch represented South Africa at the Utah Small Satellite Conference that was held in the USA in August.

Kgabo Mathapo presented a paper on South Africa's second satellite, recently named 'Sumbandila' - a Venda word that means 'showing the way' or 'Pathfinder'. Mathapo's paper deals with the software defined radio automatic identification receiver (AIS), one of the several experimental payloads on the satellite.

Kgabo Mathapo presented a paper on Sumbandila, SA’s second satellite
Kgabo Mathapo presented a paper on Sumbandila, SA’s second satellite

The satellite is being built by SunSpace, a company that has its origins from the Sunsat satellite programme of the University. Sunsat was developed completely by a local team of engineers and launched in 1999 by NASA. This team forms the core of SunSpace today.

The Small Satellite Conference's theme this year was: The first 20 years, where we have been - where we are going. Sunspace considered it important for South Africa to be presenting a paper and supported Mathapo's participation.

Software defined radio (SDR) is a technology that is currently being researched at the University of Stellenbosch because of its potential to realise reconfigurable radio systems and networks that use the same hardware for different applications. The primary purpose of the SDR AIS experimental payload on Sumbandila is to demonstrate the monitoring of marine traffic along the SA coast. The secondary purpose is to carry out scientific experiments that will demonstrate the possibility of reconfiguring radio systems on a satellite through software updates and to serve as proof of concept of SDR for satellite communication systems.

Sumbandila (ZA002) is South Africa's second satellite that will be launched in a low earth orbit and has in addition to experimental payloads, an on-board multisensor imager will be used to take high resolution images of the earth. The satellite will be launched into a 500 km sun-synchronous orbit with a local time (at the equator) of 10 am and 10 pm.

The SDR project will use a space-qualified VHF/UHF transponder and on-board processing unit, developed for small satellites by SunSpace. The SDR architecture itself allows for the development of a library of components that are used to build a radio system.

Mathapo is studying in the Department of Signal Processing and Telecommunications Research Group and is working on the SDR project as his thesis for his Masters Degree in Electronic Engineering which he expects to complete this year. His paper goes into detail about GMSK modulation, demodulation and filtering techniques.


  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • The path to 5G requires a strong optical network
    13 June 2018, Lambda Test, Telecoms, Datacoms, Wireless, Test & Measurement
    5G mobile communications networks will be based on virtualised architecture – specifically, a network functions virtualisation (NFV) standard – which is an evolution of the centralised radio access network ...
  • High-precision GNSS module
    13 June 2018, RF Design, Telecoms, Datacoms, Wireless
    u-blox announced the ZED F9P multiband GNSS (global navigation satellite system) module with integrated multiband real-time kinematics (RTK) technology for machine control, ground robotic vehicles and ...
  • Rapidly deployable antenna masts
    13 June 2018, Webb Industries, Telecoms, Datacoms, Wireless
    Webb Industries’ Rapid Deployment Solution (RDS) is a typically single-user site solution which does not require concrete or any excavation and has a very low environmental impact. “The main advantage ...
  • Bandpass filters
    13 June 2018, Electrocomp, Telecoms, Datacoms, Wireless
    AVX has released the new BP series of low-profile, high-performance bandpass filters based on its multilayer organic (MLO) high-density interconnect technology. The filters incorporate high-dielectric-constant ...
  • Wireless mesh modules
    13 June 2018, TRX Electronics, Telecoms, Datacoms, Wireless
    Mouser Electronics is now stocking the MGM13P Mighty Gecko wireless mesh modules from Silicon Labs. Featuring secure and flexible mesh protocol stacks, an integrated chip antenna, and radio frequency ...
  • GPRS and GNSS module
    13 June 2018, Electrocomp, Telecoms, Datacoms, Wireless
    The G500-GL from Fibocom is a GPRS module supporting 850 MHz (B5), 900 MHz (B8), 1800 MHz (B3) and 1900 MHz (B2) bands, as well as positioning via GPS, Beidou, GLONASS, QZSS and SBAS. It is controlled ...
  • SP4T RF switch
    13 June 2018, RF Design, Telecoms, Datacoms, Wireless
    Qorvo’s QPC6742 RF switch IC is 75 Ω silicon-on-insulator (SOI) single-pole, four-throw (SP4T) switch, designed for use in CATV, satellite set-top, and other high-performance communications systems. This ...
  • Navigating a way through GNSS
    16 May 2018, Arrow Altech Distribution (AAD), This Week's Editor's Pick, Telecoms, Datacoms, Wireless
    Having four major satellite navigation systems available worldwide is a big step forward for global navigational satellite systems.
  • Company profile: Poynting
    16 May 2018, Poynting Antennas, Telecoms, Datacoms, Wireless, News
    Poynting has evolved its global presence to the point where its main market is now Europe, with 50% of its turnover coming from the Nordic countries in particular.
  • Zigbee solution for multiprotocol SoC
    16 May 2018, Avnet South Africa, RF Design, Telecoms, Datacoms, Wireless
    A Zigbee solution is now available for Nordic Semiconductor’s nRF52840 multiprotocol SoC, with the aim of expanding its portfolio of mesh networking solutions for smart home, enterprise and industry. ...
  • Cloud toolbox for Renesas MCUs
    16 May 2018, Hi-Q Electronics, Telecoms, Datacoms, Wireless
    Renesas Electronics announced the new Renesas Synergy Enterprise Cloud Toolbox v1.1, a software application project that, together with the Synergy AE-CLOUD1 kit, provides a reference design and starting ...
  • Broadband MMIC switches
    16 May 2018, RF Design, Telecoms, Datacoms, Wireless
    Custom MMIC continues to add to its extensive family of MMIC (monolithic microwave integrated circuit) switches with two new GaAs devices – the non-reflective CMD235C4 and CMD236C4. The CMD235C4 is a ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.