Apparatus and method for generating jamming signal, communication system

An apparatus for generating a jamming signal, the apparatus comprising:

• a codeword converter configured to obtain at least one codeword matched previously to binary bits by converting the binary bits of a first communication signal to be transmitted to the at least one codeword;
• a signal superimposing unit configured to generate a second communication signal by superimposing a first conversion signal obtained by converting the first communication signal to an up-chirp signal and a second conversion signal obtained by converting the first communication signal to a down-chirp signal;
• and
• a jamming signal generator configured to generate a pseudo jamming signal based on the second communication signal and the at least one codeword.

A non-transitory computer-readable storage medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method for generating a jamming signal, the method comprising:

• obtaining at least one codeword matched previously to binary bits by converting the binary bits of a first communication signal to be transmitted to the at least one codeword;
• generating a second communication signal by superimposing a first conversion signal obtained by converting the first communication signal to an up-chirp signal and a second conversion signal obtained by converting the first communication signal to a down-chirp signal;
• and
• generating a pseudo jamming signal based on the second communication signal and the at least one codeword.