DIRECT SEQUENCE SPREAD SPECTRUM

RECEIVER–TRANSMITTER

ACCOLADE^® SIMULATION

A wireless link will provide real time sensors’ data at the base workstation. The entire team will be able to monitor the KA1000 on the fly; thus avoiding waiting for the copilot to bring the laptop after the car has been driven. A cellular phone will enable the EV team aid the pilot to better drive the car.

I simulated with ACCOLADE^Ò a wireless Direct Sequence Spread Spectrum Communications link to be built and installed in the KA1000 Electric Vehicle. I studied time and frequency domain responses of the DSSS link in presence of additive WGN, Jammer Corruption, and Radar Interference.

The verified advantages of Direct Sequence Spread Spectrum were:

• LPI (Low Probability of Intercept)
• WGN (White Gaussian Noise) Immunity
• Jamming Immunity
• Wideband Radar Inteference Immunity
• No need for error correction codes. Error correction codes would have been necessary if I had chosen Frequency Hopping Spread Spectrum transmission for example
  

The verified disadvantage of Direct Sequence Spread Spectrum was:

• Limited Near–Far performance

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