Description of the radio channel |
Free space
Undistorted transmission
Attenuation.
Multipath
Fading. Doppler spread.
Delay spread. Frequency selective channels. |
Channel sounders |
Narrowband
Doppler. Nyquist limit.
Wideband.
Frequency domain sounders: VNA
Time domain sounders.
RF pulse.
Sliding correlation sounders.
Sounder design and performance assesment.
Narrowband sounder with spectrum analyzer 0 span.
VNA based sounder.
Sliding correlation sounder.
|
Wideband modulations |
Delay spread. Inter symbol interference. Irreducible BER.
Frequency hopping: GSM
OFDM. Guard interval. Pilot tones. Equalization. PAPR. Amplifiers. DVB-T.
CDMA. Processing gain. Noise. Adquisition and tracking. RAKE receiver. 3G. Power control. Cellular breathing. |
UWB radar |
1. Fundamentals.
2. Applications:
- Ground penetrating radar
- Medical imaging
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