RFDoppler Frequency Calculator: Moving Reflector & Transmitter
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This page offers a Doppler Frequency calculator based on the Doppler frequency equation. It specifically addresses the scenarios of a moving reflector and a moving transmitter. The calculator utilizes distinct equations for each of these cases.
Doppler Frequency Calculator - 1: Moving Reflector Case
Let’s dive into calculating the Doppler frequency when the reflector is in motion.
EXAMPLE #1 (Doppler frequency calculation for moving reflector case):
- Inputs : Speed of Wave source (m/sec) = 1000, Operating Frequency (MHz) = 3000 (i.e. 3GHz)
- Output : Doppler Frequency (Hz) = 20000 (i.e. 20KHz)
The following Doppler frequency formula is used to calculate the Doppler frequency when the reflector or target is moving. The Doppler frequency calculator#1 uses the following equation:
Doppler Frequency Calculator - 2: Moving Transmitter Case
Now, let’s explore the calculation when the transmitter is moving.
EXAMPLE #2 (Doppler frequency calculation for moving transmitter case):
- Inputs : Speed of Wave source (m/sec) = 1000, Operating Frequency (MHz) = 3000 (i.e. 3GHz)
- Output : Doppler Frequency (Hz) = 10000 (i.e. 10KHz)
The following Doppler frequency formula is employed to calculate the Doppler frequency when the transmitter is moving. The Doppler frequency calculator #2 uses the following equation:
