LCM of two numbers

Doppler Frequency Shift Calculator

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Special Purpose Radars Radar and Antenna Specifications Radar Antennas Reception

✖Target Velocity describes the rate at which target moves toward or away from the radar.ⓘ Target Velocity [v_t]			+10% -10%
✖Wavelength refers to the physical length of one complete cycle of an electromagnetic wave transmitted by the radar system.ⓘ Wavelength [λ]			+10% -10%

✖Doppler frequency shift is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.ⓘ Doppler Frequency Shift [Δf_d]

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Formula

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Doppler Frequency Shift

Formula

Δf d = \frac{2 \cdot v t}{λ}

Example

20 Hz = \frac{2 \cdot 5.8 m/s}{0.58 m}

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Doppler Frequency Shift Solution

STEP 0: Pre-Calculation Summary

Formula Used

Doppler Frequency Shift = (2*Target Velocity)/Wavelength
Δf_d = (2*v_t)/λ
This formula uses 3 Variables

Variables Used

Doppler Frequency Shift - (Measured in Hertz) - Doppler frequency shift is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.
Target Velocity - (Measured in Meter per Second) - Target Velocity describes the rate at which target moves toward or away from the radar.
Wavelength - (Measured in Meter) - Wavelength refers to the physical length of one complete cycle of an electromagnetic wave transmitted by the radar system.

STEP 1: Convert Input(s) to Base Unit

Target Velocity: 5.8 Meter per Second --> 5.8 Meter per Second No Conversion Required
Wavelength: 0.58 Meter --> 0.58 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Δf_d = (2*v_t)/λ --> (2*5.8)/0.58

Evaluating ... ...

Δf_d = 20

STEP 3: Convert Result to Output's Unit

20 Hertz --> No Conversion Required

FINAL ANSWER

20 Hertz <-- Doppler Frequency Shift

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< Special Purpose Radars Calculators

Amplitude of Signal Received from Target at Range

Go Amplitude of Signal Received = Echo Signal Voltage/(sin((2*pi*(Carrier Frequency+Doppler Frequency Shift)*Time Period)-((4*pi*Carrier Frequency*Range)/[c])))

Amplitude of Reference Signal

Go Amplitude of Reference Signal = CW Oscillator Reference Voltage/(sin(2*pi*Angular Frequency*Time Period))

Reference Voltage of CW Oscillator

Go CW Oscillator Reference Voltage = Amplitude of Reference Signal*sin(2*pi*Angular Frequency*Time Period)

Doppler Frequency Shift

Go Doppler Frequency Shift = (2*Target Velocity)/Wavelength

Doppler Frequency Shift Formula

Doppler Frequency Shift = (2*Target Velocity)/Wavelength
Δf_d = (2*v_t)/λ

What is target velocity?

When the axis is in Closed Loop control, the Target Velocity refers to the speed and direction of a detected object relative to the radar system. The radar system can only determine the component of the target's velocity along the radar's line of sight (radial velocity).

How to Calculate Doppler Frequency Shift?

Doppler Frequency Shift calculator uses Doppler Frequency Shift = (2*Target Velocity)/Wavelength to calculate the Doppler Frequency Shift, The Doppler Frequency Shift formula is defined as the change in frequency of a wave in relation to an observer who is moving relative to the wave source. Doppler Frequency Shift is denoted by Δf_d symbol.

How to calculate Doppler Frequency Shift using this online calculator? To use this online calculator for Doppler Frequency Shift, enter Target Velocity (v_t) & Wavelength (λ) and hit the calculate button. Here is how the Doppler Frequency Shift calculation can be explained with given input values -> 20 = (2*5.8)/0.58.

FAQ

What is Doppler Frequency Shift?

The Doppler Frequency Shift formula is defined as the change in frequency of a wave in relation to an observer who is moving relative to the wave source and is represented as Δf_d = (2*v_t)/λ or Doppler Frequency Shift = (2*Target Velocity)/Wavelength. Target Velocity describes the rate at which target moves toward or away from the radar & Wavelength refers to the physical length of one complete cycle of an electromagnetic wave transmitted by the radar system.

How to calculate Doppler Frequency Shift?

The Doppler Frequency Shift formula is defined as the change in frequency of a wave in relation to an observer who is moving relative to the wave source is calculated using Doppler Frequency Shift = (2*Target Velocity)/Wavelength. To calculate Doppler Frequency Shift, you need Target Velocity (v_t) & Wavelength (λ). With our tool, you need to enter the respective value for Target Velocity & Wavelength and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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