Received signal strength indication link like other metrics such as travel time measurement (time of arrival). Received signal strength indication In telecommunications, received signal strength indicator (RSSI) is a measurement of the power present in a received radio signal. RSSI is usually invisible to a user of a receiving device. However, because signal strength can vary greatly and affect functionality in wireless networking, IEEE 802.11 devices often make the measurement available to users. RSSI is often derived in the intermediate frequency (IF) stage before the IF amplifier. In zero-IF systems, it is derived in the baseband signal chain, before the baseband amplifier. RSSI output
Sensitive skin (electronic device) Sensitive skin (electronic device) Sensitive skin, also known as sensate skin or electronic skin (e-skin), is an electronic sensing skin placed on the surface of a machine such as a robotic arm. The goal of the skin is to sense important environmental parameters—such as proximity to objects, heat, moisture, and direct touch sensations. Examples of a sensitive skin have been made by a group at the University of Tokyo led by Prof. Takao Someya. The group's work has been published in Nature, Science and Advanced Materials journals, as well as "Proceedings of the (United States) National Academy of Sciences". They