Virtual Distance Radar Testing via Frequency Difference

The patent replaces mechanical/physical systems (physical displacement of targets, multiple physical delay lines) with an electronic signal processing system. The testing device generates electronic test signals with predetermined frequency differences that simulate distance information, eliminating the need for physical movement or multiple physical cable lengths. This substitution directly resolves the contradiction by maintaining measurement precision through accurate frequency control while dramatically improving productivity through automated electronic testing.

The patent changes the fundamental parameter used for distance simulation from physical dimension (actual distance, cable length) to frequency parameter (frequency difference between signals). By generating test signals with specific frequency differences corresponding to desired distance values, the system achieves accurate distance simulation without physical displacement or multiple delay lines, thereby resolving the contradiction between measurement precision and testing efficiency.

The patent replaces space-consuming physical infrastructure (large test areas for physical displacement, extensive cable management for multiple delay lines) with a compact electronic signal generation system. The testing device generates all necessary test signals electronically within a confined space, eliminating the need for large physical test areas while maintaining testing accuracy through precise frequency control.

The patent creates virtual copies of distance information through frequency modulation rather than physical replication. Instead of creating multiple physical delay lines of different lengths, the system generates electronic signals with frequency differences that represent different distance values. This virtual copying approach maintains measurement precision across multiple distance simulations while requiring minimal physical space.

The patent prepares test signals in advance with predetermined frequency differences corresponding to various distance values. The testing device generates these frequency-modulated test signals electronically before actual testing begins, eliminating the need for time-consuming physical setup, target displacement, or cable reconfiguration during testing. This preliminary electronic preparation maintains testing accuracy while significantly reducing total testing time.

The patent replaces time-consuming mechanical operations (physical target displacement, manual cable switching) with rapid electronic signal generation. The testing device can switch between different virtual distance simulations by simply changing signal frequency parameters, achieving the same testing accuracy as physical methods but in a fraction of the time through automated electronic control.