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.


  Follow us on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • LPWA technology unleashes Smart City innovation
    11 October 2017, Arrow Altech Distribution (AAD), Telecoms, Datacoms, Wireless
    The Internet of Things (IoT) is powering a new generation of breakthroughs that enhance public safety and improve quality of life. Imagine a car accident on a city street at night. The accident is captured ...
  • GNSS chip for small battery-powered devices
    11 October 2017, RF Design, Telecoms, Datacoms, Wireless
    u-blox announced the latest member of its ZOE M8 series of ultra-small GNSS SiPs. The ZOE M8B is claimed to be the industry’s most power efficient GNSS System in Package (SiP) available for small battery-powered ...
  • Industrial Wi-Fi antennas
    11 October 2017, Poynting Antennas, Telecoms, Datacoms, Wireless
    Poynting announced the release of a new industrial Wi-Fi and WiMax antenna range. These dual frequency antenna products were specifically designed for use in systems that require higher reliability in ...
  • Continuously variable attenuator
    11 October 2017, Conical Technologies, Telecoms, Datacoms, Wireless
    ARRA Microwave released the new Model 3814-10 continuously variable attenuator with a frequency span of 1 to 2 GHz and 0 to 10 dB attenuation. Attenuation resettability is 0,1 dB or better for use in ...
  • Multiprotocol SoC supporting Thread
    11 October 2017, RF Design, Telecoms, Datacoms, Wireless
    Nordic Semiconductor’s latest multiprotocol SoC, the nRF52840, which supports both Bluetooth 5 and IEEE 802.15.4 (the foundation of the Thread networking standard, together with the OpenThread stack) ...
  • Wi-Fi + BT combo chip
    11 October 2017, Arrow Altech Distribution (AAD), Telecoms, Datacoms, Wireless
    Cypress Semiconductor announced a combo solution that delivers ultra-low power Wi-Fi and Bluetooth connectivity to extend battery life for wearables, smart home products and portable audio applications. ...
  • CAN transceiver
    11 October 2017, CST Electronics, Telecoms, Datacoms, Wireless
    The MAX14883E from Maxim Integrated Products, with selectable polarity and high-speed CAN transceiver, is optimised for industrial network applications, to reduce installation errors and ensure robust ...
  • External CAN FD controller
    11 October 2017, Tempe Technologies, Telecoms, Datacoms, Wireless
    Microchip’s MCP2517FD provides designers with a simplified path to upgrade from CAN 2.0 to CAN FD and benefit from the resulting protocol enhancements. CAN FD (flexible data-rate) offers many benefits ...
  • IoT gateway for industrial applications
    11 October 2017, Brandwagon Distribution, Telecoms, Datacoms, Wireless
    Brandwagon is introducing the IOT-GATE-iMX7 – a miniature, cost effective IoT gateway and industrial controller with an array of wireless and wired interfaces, designed into a miniature aluminium housing ...
  • Quectel LTE modules certified by AT&T
    13 September 2017, ICORP Technologies, Telecoms, Datacoms, Wireless
    Two of Quectel Wireless Solutions’ LTE modules recently received AT&T certification for operating on the carrier’s North American LTE wireless network. The two modules – the LTE Cat-1 EC21-A and LTE Cat-4 ...
  • Smart antenna GNSS modules
    13 September 2017, Arrow Altech Distribution (AAD), Telecoms, Datacoms, Wireless
    Arrow Altech Distribution has announced the availability of a new, ultra-slim family of smart antenna GNSS (global navigation satellite system) receiver modules introduced by Telit. According to Arrow ...
  • Wireless motion sensors
    13 September 2017, RF Design, Telecoms, Datacoms, Wireless
    Finland-based Suunto has selected Nordic Semiconductor’s award-winning nRF52832 Bluetooth low energy System-on-Chip (SoC) for Movesense, an open environment for developers of wireless motion sensing solutions ...

 
 
         
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.