The invention belongs to the field of
radar technologies, and relates to a CE-OFDM (
Constant Envelope Orthogonal Frequency-Division
Multiplexing) based
radar communication integration
system. The invention is a CE-OFDM based super-resolution
radar communication integration scheme which is provided on the basis of a traditional OFDM radar communication integration scheme, compensated through communication information, and capable of improving the effective
data transmission rate and solving a problem that the PAPR of OFDM signals is too high. A transmitting terminal firstly turns data to be transmitted into CE-OFDM symbol frames through
QAM (
Quadrature Amplitude Modulation), IFFT (Inverse
Fast Fourier Transform) and
phase modulation, and a
single pulse in a pulse repetition period is replaced by using a CE-OFDM symbol, so that the
data transmission rate is improved, and the problem that the PAPR of transmitted signals is too high is solved. At a receiving terminal, received waveform pulses are demodulated, an inverse process of the transmitting process of the CE-OFDM
system is carried out on the signals, and data can be demodulated; and the transmitting waveform is known,
pulse compression processing is carried out on received echo
waves, and super-resolution
estimation for the distance and the speed of a target can be accomplished through
decorrelation processing and an MUSIC
algorithm after information compensation.