Finding the location of the GPS without the GPS

Scientists have created an algorithm to detect the location of humans and robots in areas where GPS is not located (Global Positioning System). It is noteworthy that there was a scientist in India who was born in India.




Scientists from the US Army Research Laboratory say that it is essential to find out the location of military personnel operating in the most complex, unknown and very poor structures.

"It is a very important task to help detect missing soldiers," says US Army Laboratory researcher Ganz Verma, "it's important to work together as a team of human and robots."

"Most processors and solutions like GPS users use to help us work better in situations like this, for instance, to get to where we want to reach the car," says Verma.

However, these solutions and processes do not work for military situations.



"For instance GPS encryption is the most difficult to encounter the necessary infrastructure (eg satellites) to use GPS technology, and it is difficult to get GPS signals penetrating on the other side of the complex neighborhoods (eg inside the buildings) because of the complex and cluttered surroundings Be a barrier to the spread of wireless signals E says "pikatu tajipu working in the laboratory.

Specifically, when the amount of barriers inside the buildings is greater than the wiredless wireless signals, the energy of signals is weakened and distorted. Because of this wireless signals are unreliable to exchange information about the location.

According to researchers, space-based processes / processes that utilize the power of wireless signals act well in exterior surfaces.



So researchers have designed innovative technology to determine the direction of the base required radio signals (determining the direction of arrival -DoA).


The basis of this technology is that the slope of the strength of the received local signals will carry information about the source