Estimation of relative velocity between transmitter and receiver

A method for estimating relative velocity between a receiver platform and a transmitter platform, the method comprising:

• measuring, by an electronic warfare (EW) system, a first time of arrival, a first phase, and a frequency of a first received radar pulse transmitted by the transmitter platform;
• measuring, by the EW system, a second time of arrival and a second phase of a second received radar pulse transmitted by the transmitter platform;
• calculating, by the EW system, a relative velocity between the receiver platform and the transmitter platform based on a difference between the first time of arrival and the second time of arrival, a difference between the first phase and the second phase, and the frequency, wherein the EW system comprises an antenna, a radio frequency front end, an analog to digital converter, a pulse measurement circuit, and a relative velocity calculation circuit;
• and
• calculating an angle of arrival (AOA) of the first and second received radar pulses based on a ratio of the calculated relative velocity to a velocity of the receiver platform.

A computer program product including one or more non-transitory machine-readable mediums encoded with instructions that when executed by one or more processors cause a process to be carried out for estimating relative velocity between a receiver platform and a transmitter platform, the process comprising:

• measuring a first time of arrival, a first phase, and a frequency of a first received radar pulse transmitted by the transmitter platform;
• measuring a second time of arrival and a second phase of a second received radar pulse transmitted by the transmitter platform;
• and
• calculating a relative velocity between the receiver platform and the transmitter platform based on a difference between the first time of arrival and the second time of arrival, a difference between the first phase and the second phase, and the frequency;
• and
• calculating an angle of arrival (AOA) of the first and second received radar pulses based on a ratio of the calculated relative velocity to a velocity of the receiver platform.