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- It is well known that the SAR echo can be considered as a linear FM signal,so does the echo of moving targets.The square modulus of linear FM signal has high energy centrality in the ambiguity domain. 近似为线性调频信号的SAR运动目标回波信号的模糊度函数在模糊平面内具有很高的能量集中性。
- A Method for Measuring the Linearity of the Linear FM Signal 一种测量线性调频信号线性度的方法
- Distortion Analysis of Linear FM Signal and Comparision among Three Kinds of Intermediate Amplifiers 关于线性调频信号的畸变分析及三种中放系统的比较
- linear FM signal 线性调频信号
- In order to obtain high range resolution, the Chirp signal is used as subpulse to form stepped frequency modulated radar signal. 摘要为了获得高距离分辨率，将线性调频信号作为子脉冲构成调频步进雷达信号。
- linear FM stepped-frequency signal 线性调频步进信号
- linear frequency-stepped chirp signal 线性调频步进信号
- This thesis analyzes the AM and FM signal and give a actual realization of software radio receiver. 本论文对输入的调频和调幅信号的解调进行了具体的分析。
- Chaotic FM signal is similar to random signal.It has good Electronic Counter-Counter Measure (ECCM) capabilities. 混沌调频信号类似随机信号，具有较强的抗干扰性能(ECCM)。
- The acoustical transfer function and transfer loss of exhaust muffler can be obtained by using chirp signal as excitation at the inlet of exhaust muffler. 采用适当的人工边界条件来描述排气口外部的半无限空间，通过进气口端正弦扫频激励，可求得出口端的响应，从而获得该排气消声器系统的传递函数和传声损失。
- "Such noise generally affects the amplitude of a radio wave But not its frequency, so an FM signal remains virtually unchanged. 噪音信号只影响无线电波的振幅而不影响其频率,因此,调频信号可以基本上保持不变。
- As the pressure of the pregnant woman s abdomen would change if the foetus move, the FM signal is gotten by using pressure sensor. 针对胎动发生时引起母体腹壁压力改变这一生理特性,首先利用压力传感器从母腹部提取胎动信号并经采样至计算机内;
- The frequency spectrum of an actual FM signal has components extending out to infinite frequency, although they become negligibly small beyond a point. 在模拟应用中，载波的频率跟随输入信号的幅度直接成等比例变化。在数字应用领域，载波的频率则根据数据序列的值作离散跳变，即所谓的频率键控。
- Synchronous FM System provides broadcasters with continuous program coverage along highways or within a region under-served by a single FM signal. 摘要调频同步广播系统是仅使用一个频率，实现地域覆盖或高速路线性覆盖的调频传输系统。
- Chirp signal(LFM) is a kind of large time and band product signal used in pulse compression radars.It's advantage is non-sensitive to the Doppler shift of echo signal in the matching filter. 线性调频(LFM)信号是脉冲压缩体制雷达中广泛应用的大时宽带宽积信号,其突出优点是匹配滤波器对回波信号的多普勒频移不敏感。
- Abstract: Synchronous FM System provides broadcasters with continuous program coverage along highways or within a region under - served by a single FM signal. 摘 要: 调频同步广播系统是仅使用一个频率，实现地域覆盖或高速路线性覆盖的调频传输系统。
- Stretch processing is used to demodulate and remodulate the wideband chirp signal, which can reduce the system IF bandwidth, and reduce the complicated degree of the system remarkably. 该模拟器采用去斜率解调和调制处理来降低系统中频处理带宽，从而降低了系统复杂程度。
- A High Accurate Linear FM and PM Signal Source Based on DDS 高精度线性调频调相信号源
- For the problem of parameter estimation of one dimensional and two dimensional chirp signal in additive colored Gaussian noise, a new method based on fourth-order cumulant is proposed. 摘要针时加性高斯有色噪声背景下的一维、二维线性调频信号的参量佑计问题，引入高阶统计量，提出了一种基于四阶累积量的新方法。
- the linear FM distortion is <3. 5%. 调频非线性失真小于3.;5%25
