Knowledge Base September 10, 2025

Analysis of Core Terminology in Radar, Communications, and Electronic Warfare: The Essential Guide from Beginner to Expert

Radar, communications, and electronic warfare core terms: a bilingual glossary to help you systematically learn and quickly reference key industry terminology.

Analysis of Core Terminology in Radar, Communications, and Electronic Warfare: The Essential Guide from Beginner to Expert
Photo: Robert So

Radar, communications, and electronic warfare are key technological fields in modern science and engineering, involving a vast array of specialized terms and core concepts. To facilitate systematic learning and quick reference, we have compiled a glossary of industry terminology to help you efficiently master relevant professional knowledge.

Core Terminology of Radar, Communications, and Electronic Warfare
English Chinese
Radar 雷达
pulse-Doppler radar 脉冲多普勒雷达
search radar 搜索雷达
tracking radar 跟踪雷达
fire-control radar 火控雷达
weather radar 气象雷达
AESA 有源相控阵
PESA 无源相控阵
phased array 相控阵
planar array 平板天线
conformal array 共形阵列
T/R module 收发模块
phase shifter 移相器
true time-delay 真实时延
digital beamforming 数字波束形成
beamforming 波束形成
adaptive beamforming 自适应波束形成
MVDR 最小方差无失真响应
Capon beamformer Capon波束形成
MUSIC MUSIC算法
ESPRIT ESPRIT算法
DOA 到达方向
AOA 俯仰角
monopulse 单脉冲
sum channel 和通道
difference channel 差通道
ULA 均匀线阵
URA 均匀面阵
UCA 均匀圆阵
element spacing 单元间距
half-wavelength spacing 半波长间距
mutual coupling 互耦
array factor 阵列因子
sidelobe level 旁瓣电平
sidelobe suppression 旁瓣抑制
grating lobe 栅瓣
beam squint 斜视
calibration 标定
phase calibration 相位标定
amplitude calibration 幅度标定
channel imbalance 通道失配
internal calibration 内标定
external calibration 外标定
calibration loop 标定环
pulsed radar 脉冲体制
CW 连续波
FMCW 调频连续波
chirp 线性调频
LFM 线性调频
NLFM 非线性调频
phase-coded pulse 相位编码脉冲
Barker code 巴克码
polyphase code (P1–P4) 多相码(P1-P4)
Frank code Frank码
M-sequence M序列
Golay pair 戈雷码对
step-frequency radar 逐频体制
triangular modulation 三角调制
sawtooth modulation 锯齿调制
up-chirp 上扫频
down-chirp 下扫频
PRI 脉冲重复间隔
PRF 脉冲重复频率
pulse width 脉宽
duty cycle 占空比
time-bandwidth product 时带宽积
coherent processing interval (CPI) 相参处理间隔
coherent integration 相干积累
noncoherent integration 非相干积累
inter pulse modulation 脉间调制
intra-pulse modulation 脉内调制
staggered PRI 交错PRI
jittered PRI 抖动PRI
unambiguous range 无模糊距离
unambiguous velocity 无模糊速度
range ambiguity 距离模糊
Doppler ambiguity 多普勒模糊
matched filter 匹配滤波器
window function 窗函数
Hann window 汉宁窗
Hamming window 海明窗
Blackman window 布莱克曼窗
Chebyshev window 切比雪夫窗
Taylor window 泰勒窗
ambiguity function 模糊函数
cross-range resolution 方位向分辨率
velocity resolution 速度分辨率
range resolution 距离分辨率
compression ratio 压缩比
range sidelobe 距离旁瓣
range FFT 距离FFT
Doppler FFT 多普勒FFT
2D FFT (RD-FFT) 距多二维FFT
range-velocity map 距离-速度图
micro-Doppler 微多普勒
clutter 杂波
sea clutter 海杂波
ground clutter 地杂波
rain clutter 雨杂波
clutter map 杂波图
MTI 动目标显示
MTD 动目标检测
STAP 空时自适应处理
DPCA 旁瓣对消
GMTI 地面动目标指示
CFAR 恒虚警
CA-CFAR 均值恒虚警
GO-CFAR 最大值恒虚警
SO-CFAR 小值恒虚警
OS-CFAR 统计恒虚警
target detection 目标检测
target tracking 目标跟踪
multi-target tracking 多目标跟踪

If you have any terms to add or wish to explore detailed explanations of specific terms, feel free to leave a comment and interact with us! We will continue to update the terminology and refine the knowledge base, striving to provide you with more professional and practical industry knowledge tools. Stay tuned!

Further Reading

Further Reading

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