Final answer:
Link 16 terminals use Error Correction Coding, specifically Reed-Solomon codes, to correct errors and erasures in a message.
Step-by-step explanation:
The technique used by Link 16 terminals to correct errors and erasures in a message is called Error Correction Coding (ECC). ECC is a method of adding redundant information to the message so that errors and erasures can be detected and corrected. The most commonly used ECC scheme in Link 16 is Reed-Solomon codes.
Reed-Solomon codes are based on finite fields and utilize polynomial arithmetic to add redundancy to the data. By using Reed-Solomon codes, Link 16 terminals can correct errors and erasures in a message, ensuring that uncorrupted data is passed to the host system.
For example, if a Link 16 terminal receives a message with some errors or erasures, it can use the redundant information provided by the ECC to identify and correct those errors, thus recovering the original uncorrupted data.