With the rapid development of wireless communication technology and the
increasing demand for communication quality in various fields, spread
spectrum communication (SSC) and multiple input multiple output (MIMO)
technology have become crucial research directions in the field of
military communication, and space-time block coding (STBC) is an
indispensable key technology in MIMO systems. This paper combined the
excellent instrument interaction ability of LABVIEW and the data
processing ability of MATLAB to build a direct sequence spread
spectrum-space time block coding (DSSS-STBC) model based on circular
mapping (CM) spread spectrum code, aiming at realizing multi-domain
joint transmission of information in space, time, and power domains. The
results demonstrated that the joint simulation platform of LABVIEW and
MATLAB/Simulink successfully confirmed the superior spread spectrum
performance of chaotic spreading codes based on circular mapping
compared to traditional spreading codes. In addition, the multi-domain
joint coding combining DSSS and STBC significantly enhanced the
reliability and interference resistance of the communication system.