Continuous-wave radar system for detecting ferrous and non-ferrous metals in saltwater environments

A radar system for detecting objects in an underwater environment, comprising:

• at least one sentry unit node device in communication with a plurality of antennas;
• wherein the plurality of antennas include at least one transmitter (Tx) antenna and at least one receiver (Rx) antenna, and/or at least one antenna capable of both transmitting and receiving electromagnetic waves;
• wherein each of the at least one sentry unit node device includes at least one signal generator and at least one signal processor;
• wherein the at least one sentry unit node device is operable to emit at least one transmission signal to a target area through at least one of the plurality of antennas;
• wherein the at least one sentry unit node device is operable to receive at least one return signal from the target area;
• wherein the at least one signal processor of the at least one sentry unit node device is operable to analyze the at least one return signal;
• wherein the at least one signal processor is operable to detect and/or locate at least one target object in the target area based on the at least one return signal;
• wherein the at least one sentry unit node device is connected to at least one buoy or at least one other flotation device;
• and
• wherein the underwater environment is a saltwater environment.

A radar system for detecting objects in an underwater environment, comprising:

• at least one sentry unit node device in communication with a plurality of antennas;
• wherein the plurality of antennas include at least one transmitter (Tx) antenna and at least one receiver (Rx) antenna, and/or at least one antenna capable of both transmitting and receiving electromagnetic waves;
• wherein each of the at least one sentry unit node device includes at least one signal generator and at least one signal processor;
• wherein the at least one sentry unit node device is operable to emit at least one transmission signal to a target area through at least one of the plurality of antennas;
• wherein the at least one sentry unit node device is operable to receive at least one return signal from the target area;
• wherein the at least one signal processor of the at least one sentry unit node device is operable to analyze the at least one return signal;
• wherein the at least one signal processor is operable to detect and/or locate at least one target object in the target area based on the at least one return signal;
• wherein the plurality of sentry unit node devices and/or the plurality of antennas are buried beneath a seabed of the underwater environment;
• and
• wherein the underwater environment is a saltwater environment.