Distributed microwave radar imaging method and apparatus

An apparatus comprising:

• a computer-readable storage medium configured to store instructions;
• and
• a processor coupled to the computer-readable storage medium and configured to execute the instructions to cause the apparatus to:
• obtain a first echo signal of a first microwave radar, wherein the first microwave radar is disposed at a first height;
• obtain a second echo signal of a second microwave radar, wherein the second microwave radar is disposed at a second height, and wherein the first height is lower than the second height;
• obtain a first radar imaging result image of a detected target based on the first echo signal, wherein the first radar imaging result image comprises a first angle of view and includes a non-aliased upper imaging portion of the detected target;
• obtain a second radar imaging result image of the detected target based the second echo signal, wherein the second radar imaging result image comprises a second angle of view and includes a non-aliased lower imaging portion of the detected target;
• position the first radar imaging result image and the second radar imaging result image at a same center when the first angle of view is different than the second angle of view;
• perform center registration of the first radar imaging result image and the second radar imaging result image to align a lower boundary of the non-aliased upper imaging portion and an upper boundary of the non-aliased lower imaging portion with a reference line of the detected target, wherein the reference line is a center line;
• and
• fuse the first radar imaging result image and the second radar imaging result image to obtain a target fused image by splicing the non-aliased upper imaging portion with the non-aliased lower imaging portion.

A distributed microwave radar imaging system comprising:

• a first microwave radar disposed at a first height and configured to receive a first echo signal;
• a second microwave radar disposed at a second height and configured to receive a second echo signal, wherein the first height is lower than the second height;
• and
• an apparatus configured to:
• obtain the first echo signal from the first microwave radar;
• obtain the second echo signal from the second microwave radar;
• obtain a first radar imaging result image of a detected target based on the first echo signal, wherein the first radar imaging result image comprises a first angle of view and includes a non-aliased upper imaging portion of the detected target;
• obtain a second radar imaging result image of the detected target based on the second echo signal, wherein the second radar imaging result image comprises a second angle of view and includes a non-aliased lower imaging portion of the detected target;
• position the first radar imaging result image and the second radar imaging result image at a same center when the first angle of view is different than the second angle of view;
• perform center registration of the first radar imaging result image and the second radar imaging result image to align a lower boundary of the non-aliased upper imaging portion and an upper boundary of the non-aliased lower imaging portion with a reference line of the detected target, wherein the reference line is a center line;
• and
• fuse the first radar imaging result image and the second radar imaging result image to obtain a target fused image by splicing the non-aliased upper imaging portion with the non-aliased lower imaging portion.