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instantaneous frequency
瞬时频率：表示信号在某一时刻的频率
常用释义
词性释义
瞬时频率：表示信号在某一时刻的频率，通常用于分析非稳态信号的频率特性。
例句
全部
Instantaneous
Frequency
Measurement
(IFM)
receivers
are
important
for
modern
electronic
reconnaissance
systems
.
瞬时测频接收机是现代电子侦察系统的重要组成部分。
A
method
for
identifying
the
instantaneous
frequency
of
a
linear
time-varying
structure
was
proposed
.
提出了一种识别线性时变结构瞬时频率的方法。
We
compare
four
types
of
methods
for
estimating
instantaneous
frequency
.
The
phase
difference
estimator
is
susceptible
to
noise
.
本文比较了四类计算瞬时频率的方法。基于相位差分的方法对噪声敏感；
Therefore
, the
instantaneous
frequency
measurement
technology
has
a
important
research
value
in
the
modern
electronic
warfare
.
所以瞬时测频技术在现代电子战中有着重要的研究价值。
In
addition
,
if
can
be
defined
that
a
generalized
instantaneous
frequency
(
IF
)
applicable
to
broadband
nonstationary
signals
.
此外，还可以定义一个广义的瞬时频率（IF）适用于宽带非平稳信号。
Using 2
-
D PCPF
,
the
instantaneous
frequency
rate
of
2-D
chirp
signals
under
low
SNR
can
be
estimated
accurately
.
应用该方法可以在较低信噪比下，准确地估计出多分量二维线性调频信号的瞬时频率变化率。
As a
result
,
the
instantaneous
frequency
is
different
at
different
position
.
结果表明，堆积脉冲不同位置瞬时频率变化不同；
Instantaneous
Frequency
Estimation
Using
Exponentially
Forgetting
Transform
基于指数遗忘分布的瞬时频率估计算法
Instantaneous
Frequency
Detection
Approach
Using
Topology
Contravariant
Functor
基于拓扑反变算子的瞬时频率检测方法
Estimation
of
the
Instantaneous
Frequency
Using
Adaptive
Time
-
Frequency
Distribution
应用自适应时频分布的瞬时频率估计
Order
Component
Extraction
on
Instantaneous
Frequency
Estimation
and
Time
-
frequency
Domain
filtering
基于瞬时频率估计及时频滤波的阶比分量提取
Precision
Analysis
of
Counting
Instantaneous
Frequency
Measurement
计数式瞬时测频精度分析
Study
of
analysis
of
instantaneous
frequency
in
partial
wave
method
论局域波法中瞬时频率分析
Advances
and Trends in
Instantaneous
Frequency
Estimation
Methodology
瞬时频率估计算法研究进展综述
Application
of
Wavelet
Transform
and
Phase
Modeling
to
Estimation
of
Instantaneous
Frequency
小波变换与相位建模在瞬时频率估计中的应用
Estimation
of
the
Instantaneous
Frequency
in
High
Noise
Circumstance
强背景噪声环境下的线性调频信号频率估计
Hindrance of
Noise
on
Instantaneous
Frequency
Measurement
Receivers
噪声对瞬时测频接收机性能的影响
Non-
stationary
Data Processing
Methods
and
Instantaneous
Frequency
非平稳数据处理方法与瞬时频率
On
the
Potential
of
Instantaneous
Frequency
as a
Damage
Detection
Tool
瞬时频率技术对结构破损检测能力的探讨
Instantaneous
frequency
measurement
based on
frequency
space
compression
and
asynchronous
optical
sampling
基于异步光取样的频率空间压缩法瞬时测频方法
Study
on
a
method
of
digital
counting
instantaneous
frequency
measurement
一种数字计数瞬时测频的方法研究
Instantaneous
frequency
estimation
based on
parametric
adaptive
time-frequency
distribution
基于参数自适应时频分布的瞬时频率估计
The
Algorithm
Based on
Zero
-
Crossing
and Extremum
Estimation
to Obtain
Instantaneous
Frequency
and
Instantaneous
Amplitude
基于过零点-极点估计的瞬时频率幅度算法
On
the
Methods
of
Instantaneous
Frequency
Estimate for
High
Resolution
Seismic
Data
高分辨地震资料瞬时频率提取方法研究
Instantaneous
frequency
estimation
of
the
sequence
of
hopping
-
frequency
based on
short-time Fourier
transform
基于短时傅立叶变换的跳频序列瞬时频率估计
Estimating
Instantaneous
Frequency
of
Vortex
Signal
in
Pulsing
Flow
脉动流条件下涡街信号瞬时频率的估计
Diagnosis
method
of
instantaneous
frequency
for
rotor
impact
-
rub
fault
of
aeroengine
航空发动机转子碰摩故障瞬时频率诊断方法
Extraction
of
Instantaneous
Frequency
in
Wavelet
Domain
小波域内瞬时频率提取方法研究
An
Effective
Method
of
Evaluating
the
FM
Signal
Instantaneous
Frequency
一种估算调频信号瞬时频率的有效方法
A
Method
for
Estimating
Instantaneous
Frequency
瞬时频率的一种估计方法