Abstract: A radar signal processing system with a self-interference cancelling function includes an analog front end (AFE) processor, an analog to digital converter (ADC), an adaptive interference canceller (AIC), and a digital to analog converter (DAC). The AFE processor receives an original input signal and generates an analog input signal. The ADC converts the analog input signal to a digital input signal. The AIC generates a digital interference signal digital interference signal by performing an adaptive interference cancellation process according to the digital input signal. The DAC converts the digital interference signal to an analog interference signal. Finally, the analog interference signal is fed back to the AFE and cancelled from the original input signal in the AFE processor while performing the front end process, reducing the interference of the static interference from the leaking of a close-by transmitter during the front end process.

Abstract: A structure of a display rack which includes a plurality of main beams, connecting sockets, diagonal support beams, and extension sockets, characterized in that the main beam is of pre-defined length, the connecting socket is movable along the main beam, the diagonal support beam is installed in slots formed by the fins of the connecting sockets, and the slots are used for the attachment of face plates.

Abstract: An improved structure of display racks is provided. The main mechanical construction of this new design contains main beams, movable flanged connecting sockets, diagonal support beams, and accessories. It facilitates a display rack of desired size, shape, height, with easy installation of face plate to provide a flexible, versatile, and easy to assemble display racks.