| Summary: | 碩士 === 國立臺北科技大學 === 電子工程系 === 106 === Because of 5G more popular, lots of frequency are already use for some communication system, so more and more people change to use high frequency signal. For this paper we selected frequency band is 24 GHz, for reduced interference in the signal transmission process environment. About the application of high frequency, if there is no higher gain then the transmitter TX signal is more difficult to send the signal to the specified location, through the array antenna can get highest gain then the others and also with high directional characteristics to increase the integrity of signal detection, so the design of this paper use array antenna as antenna design.
In addition, in the system design, divided into two parts, the first part is the MCU as a digital control panel, to provide the transmitter signal and receive the signal sent out, the other part is analog radio transceiver board as Analogue signal reception and transmission purposes, through the digital control panel control analog radio frequency transceiver board, through the antenna will send the signal to hit, hit the target detection object, the electromagnetic wave reflected by the antenna RX receiver, sent to the analog IC, The incoming data is transferred to the MCU for signal analysis and the FMCW radar is used to observe the time difference between the transmitted signal and the received signal to determine the location of the target detectors to reduce the occurrence of a car accident rate.
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