NOTE: THIS PROJECT IS DEPRECATED. PLEASE SEE the OreSat DxWiFi Project for the latest hardware and software.
##Project Overview OreSat is a CubeSat-form factor nanosatellite being built to be placed into orbit as part of NASA’s CSLI/ELaNa program. OreSat current secondary mission objective is to be able to communicate via WiFi from space -- specifically, have data be transmitted from a COTS IEEE 802.11b module onboard the CubeSat to an inexpensive “DIY” ground station setup meant for K-12 STEM programs.
##Team Members
- Andrew Greenberg (PSAS project Manager)
- Glenn LeBrasseur (RF mentor and consultant)
- Ben Wilson (Signal Prossessing)
- Devin Lorenzen (RF/Analog)
- Edward Sayers (Embedded Systems)
- Seth Ward (RF/Analog)
##Project Specifications ###Must
- Operate in space environment in a CubeSat
- Operate under industrial temperature range (-40° to +100°C)
- Radiation robust (handles SEU / latch-up)
- Use conduction, not convection, to cool.
- Operate in an amateur launch vehicle environment
- Constant g load of 15g’s
- Vibration of ? g’s (TBD: mil spec rating)
- Fit 1U CubeSat Form Factor ( < 10X10X10 cm)
- Have a output power greater than 25.2dBm (⅓ W)
- Have an average power consumption less than 6W
- Have a Tx gain greater than 15.2dB
- Have a Rx gain greater than 19dB
- Have a power added efficiency (PAE) greater than 60%
- Handle binary phase shift keying (BPSK) modulation
- Operate on a Vcc = (10,14.7,16.4)V
- Be FCC compliant
- out of band harmonics must be -40dB below carrier
- operate with a center frequency of 2.412GHz
- Have a bandwidth of 22MHz
###Should
- Have a PAE greater than 70%
- Operate under in a temperature range of -55° to +125°C
- Have a Tx Gain of 20dB
- Have a output power of 30dBm(1W)
- increase heat buffer by 10%
###May
- Have PAE greater than 80%
- Have a Tx gain of 30dB
- Have a power output of 40dBm (10W)
- Have an adjustable power output
##Notes
- Linearity is not a design requirement because BPSK modulation is amplitude independent.