Real-Time Hardware Emulation for Spatial–Temporal Correlated Multiple Channels

To reduce hardware consumption and improve the emulation accuracy of spatial-temporal correlated channel fading, this paper presents a novel emulation scheme based on the sum-of-cisoids (SOC) idea and develops a real-time hardware generation algorithm for complex harmonic frequencies(CHF). Specifically, this algorithm introduces random offsets to the parameters generated by the method of equal areas (MEA), ensuring the generation of multiple independent Gaussian random variables. Hardware measurement results demonstrate that the hardware resource consumption is lower than that of traditional methods. Furthermore, the spatial-temporal correlation of the generated channel fading closely matches the theoretical one, thereby validating the algorithm’s effectiveness.