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The first nondestructive crack detection system using acoustic emission (AE) parameter in the AE method for automotive press panels is presented. The cost damage caused by all inspections is worse, recently in the automotive industry. In this paper, a real-time crack detection system with the AE method that is especially produced for the automotive industry is demonstrated. The main purpose of this...
In this paper, the new method of 77-GHz automotive radar frequency synthesizer is introduced. This generator is aimed of the transceiver design to implement the advanced radar module. A signal generator test verified that the developed synthesizer can generate an proper transmission signal. This development will provide the opportunity of future progress in carrying out the 77GHz automotive radar...
In this paper, a 77 GHz waveform generator with Multiple Frequency Shift Keying (MFSK) is presented. This modulation waveform can improve the detection ability of automotive radar systems. A MFSK Modulation Control Logic (MMCL) is proposed, incorporates a conventional Σ-Δ fractional-N Phase Locked Loop to generate the modulation waveform. The MMCL has capability to track the linear frequency sweep...
This paper describes a waveform generator for 77 GHz automotive radar systems based on a fractional N-Phase Locked Loop (N-PLL) with a third-order delta-sigma (ΔΣ). A control unit is used to control the ΔΣ modulator to vary the output frequency. The behaviour of the generation is simulated in Simulink and ten output frequencies with a slight difference are generated. The proposed generator has the...
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