Free Space Path Loss
Simulates signal power loss in free space.
Description
The Free Space Path Loss block adds free space loss to the complex signal. The block models the loss of signal power as a function of the distance between transmitter and receiver. The Mode parameter indicates whether the loss is specified explicitly in decibels or calculated based on the distance and frequency of the RF signal.
Ports
Parameters
Mode - loss calculation mode
Decibels (by default)
| Distance and Frequency
Loss calculation mode set as one of these parameters.
-
Decibels
- loss is defined using the Loss (dB) parameter. -
Distance and Frequency
- losses are calculated using the parameters Distance (km) and Carrier frequency (MHz).
Loss (dB) - power loss
10 (By default)
| `scalar `
Power loss in decibels, specified as a scalar. The decibels displayed on the unit icon are rounded for demonstration purposes only.
Dependencies
To use this parameter, set the Mode parameter to Decibels
.
Distance (km) is the distance between the transmitter and receiver
0.100 (By default)
| scalar
.
The distance between the transmitter and receiver in kilometres, specified as a scalar.
Dependencies
To use this parameter, set the Mode parameter to Distance and Frequency
.
Carrier frequency (MHz) - Carrier frequency
1920 (By default)
| scalar
.
Carrier frequency in megahertz, specified as a scalar.
Dependencies
To use this parameter, set the Mode parameter to Distance and Frequency
.