High PRF is limited to systems that require close-in performance, like proximity fuses and law enforcement radar. For example, if 30 samples are taken during the quiescent phase between …

Pulse repetition frequency (PRF) The number of ultrasound pulses sent per second is called pulse repetition frequency (PRF). PRF is determined by the speed of sound and the distance it must …

2024年6月8日 · Pulse repetition frequency (PRF) indicates the number of ultrasound pulses emitted by the transducer over a designated period of time. It is typically measured as pulses …

High PRF operation spreads out the frequency spectrum of the receive pulse, allowing a full Doppler spectrum without aliasing or ambiguous Doppler measurements. The clutter that is …

2024年6月26日 · 脉冲信号可以用PRF (pulse repetition frequency)，PRI (pulse repetition interval),τ (pulse width)和T (IPP ,inter-pulse period)来表征，如下图所示。 每个周期内，雷达 …

2023年5月22日 · 高PRF工作模式下不存在多普勒模糊，但是距离模糊较严重。 有三个主要优点：一是主瓣杂波可以通过频域进行抑制；二是杂波频谱谱线分的足够开，存在无杂波的清晰 …

Maximum Unambiguous Doppler HPRF waveforms are designed to allow for the measurement of high Doppler velocities without ambiguity, which is critical for accurately tracking fast-moving …

2018年2月9日 · In this paper, we present high PRF ultrafast sliding compound Doppler imaging method (HUSDI) to improve quantitative flow analysis. With the HUSDI method, full scanline …

Pulse Repetition Frequency (PRF) of the radar system is the number of pulses that are transmitted per second. Radar systems radiate each pulse at the carrier frequency during …

2024年12月11日 · Pulse Repetition Frequency refers to how often the radar transmits pulses within a specific period, typically measured in pulses per second. A higher PRF means the …