公开(公告)号：US20170285138A1

公开(公告)日：2017-10-05

申请号：US15401909

申请日：2017-01-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Pil Jae PARK ,  Seong Do KIM ,  Ki Su KIM ,  Mun Yang PARK

IPC: G01S7/282 ,  G01S7/32

CPC classification number: G01S13/10 ,  G01S7/285

Abstract: Disclosed are a pulse radar apparatus and an operating method of the pulse radar apparatus, the pulse radar apparatus including a transmitter configured to receive a reference signal as a transmission clock signal, and transmit a transmission pulse to an object based on the transmission clock signal, a negative feedback loop configured to delay the reference signal and output the delayed reference signal as a reception clock signal, and a receiver configured to restore, based on the reception clock signal, a reflection pulse received in response to the transmission pulse being reflected from the object, wherein the negative feedback loop is configured to generate a delay control signal using the reference signal and a predetermined waveform signal generated by a waveform generator, delay the reference signal based on the delay control signal, and adjust the delay control signal by controlling the waveform generator to change the predetermined waveform signal.

公开(公告)号：US20140169512A1

公开(公告)日：2014-06-19

申请号：US14183513

申请日：2014-02-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Woo PARK ,  Young Jae LEE ,  Hyun Kyu Yu ,  Byung Hun MIN ,  Seong Do KIM ,  Hoai Nam NGUYEN ,  Sang Gug LEE

IPC: H04L25/08

CPC classification number: H04L25/08 ,  H03D7/1441 ,  H03D7/1458 ,  H03H19/004

Abstract: A direct conversion receiver includes: a high linearity mixer device including a sampler unit charge-sampling an input current according to a sampling frequency, and a buffer unit receiving an output signal from the sampler unit while having a low input impedance, amplifying the received signal, and outputting a current signal; and a filter device decimating an output signal from the mixer device and FIR-filtering the decimated signal.

Abstract translation: 直接转换接收机包括：高线性混频器装置，包括：采样单元，根据采样频率对输入电流进行采样;以及缓冲单元，其具有低输入阻抗，从采样器单元接收输出信号，放大接收信号 ，并输出电流信号; 以及滤波器装置对来自混频器装置的输出信号进行抽取，并对抽取的信号进行FIR滤波。