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pulse compression
- 脉冲压缩 分别从时域和频域实现 并过加窗实现旁瓣一抑制(Pulse compression is implemented in time and frequency domain and over window to achieve sidelobe suppression)
GA最大化PSB20180117
- 遗传算法最大化峰值旁瓣电平,给出阵元数,阵列长度,遗传及交叉因子,得出最优的PSB(The genetic algorithm maximizes the peak sidelobe level, giving the number of array elements, the length of the array, the genetic and crossover factors, and derives the optimal
XIANGKONGZHEN
- 每个天线单元都由独立的移相开关控制,通过控制各天线单元发射的相位,就能合成不同相位波束。相控阵各天线单元发射的电磁波以干涉原理合成一个接近笔直的雷达主瓣,而旁瓣则是各天线单元的不均匀性而造成。(Each antenna unit is controlled by an independent phase shift switch. By controlling the phase transmitted by each antenna
伪随机相位编码脉冲雷达的信号处理
- 伪随机相位编码脉冲雷达的信号处理。设码频 02,单位为 MHz,伪码周期内码长为 127,占空比 10%,雷达载频为 10GHz,输入噪声为高斯白噪声。目标模拟分单目标和双目标两种情况,目标回波输入信噪比可变(-35dB~10dB),目标速度可变(0~1000m/s),目标幅度可变(1~100),目标距离可变(0~10000m),相干积累总时宽不大于 10ms。单目标时,给出回波视频表达式;脉压和 FFT后的表达式;仿真 m序列
LFM信号脉冲压缩时的关键问题仿真
- 以下几个matlab程序对雷达常用的线性调频信号(lfm信号)进行脉冲压缩时的关键问题进行了仿真,其中包括旁瓣抑制影响(加窗与不加窗)、多卜勒频移影响,并对时域脉压与频域脉压结果进行了对比分析,供相关技术人员参考。(The following several matlab programs simulate the key issues when pulse compression is performed on radar commo
chebyshev
- 可以自由控制主瓣宽度和旁瓣级的且比雪夫窗函数波束形成(It is free to control the width of the main lobe and the side lobe and the becher window function beamforming.)
自适应波束形成与Matlab程序代码注解(1)
- 自适应波束形成技术程序代码(有注解) 包括1.均匀线阵方向图2.波束宽度与波达方向及阵元数的关系当阵元间距时,会出现栅瓣,导致空间模糊 类似于时域滤波,天线方向图是最优权的傅立叶变换5.最大信噪比准则方向图和功率谱6.ASC旁瓣相消----MSE准则7.线性约束最小方差(LCMV)准则(Adaptive beamforming technology code (Annotated))
加权对指向性的影响
- 加权对等间隔线阵指向性的影响(切比雪夫加权获得等高度旁瓣,获得最窄主瓣)(The influence of weighted peer spacing array directivity (Chebyshev weighted obtains equal height sidelobe and obtains the narrowest main lobe).)
谱修正与CPM
- 通过伪随机序列进行频率调制,并对相位连续性进行优化。调制信号的自相关函数可以通过谱修正进行旁瓣抑制(Frequency modulation is performed by pseudo-random sequence and phase continuity is optimized. The autocorrelation function of modulation signals can be sidelobe suppress
10元边射阵方向图
- 10元边射阵方向图,并分别计算它们的第一旁瓣电平和HPBW(10 yuan edge array pattern, and calculate their first sidelobe level and HPBW)
Generalised-Side-Lobe-Canceller-master
- 麦克风阵列处理-GSC(Generalized Sidelobe Canceller,广义旁瓣相消器)(GSC Generalized Sidelobe Canceller audio)
GSC_beamforming-master
- 基于GSC的波束形成算法 有旁瓣抑制的效果(GSC_beamforming-master)
Desktop
- 波束形成的几个程序,LCMV准则,广义旁瓣对消器算法(Several programs of beamforming, LCMV criterion, generalized sidelobe canceller algorithm)
lfm
- 线性调频信号仿真,及时域频域脉冲压缩,加窗处理抑制旁瓣(LFM signal simulation, pulse compression in time domain and frequency domain, windowed processing to suppress sidelobes)
M5_1
- 主要比较FBMC与OFDM的旁瓣,其中OFDM未使用循环前缀。(Mainly compare the side lobes of the two)
第14章 遗传优化算法
- 遗传算法波束形成,有效地在一定的迭代次数下降低旁瓣电平,非常好用(Genetic algorithm beamforming, effectively reducing the sidelobe level under a certain number of iterations, very easy to use)
chebwin
- 低旁瓣切比雪夫阵列,实现了固定低旁瓣的切比雪夫阵列,亲测有用(The low side lobe Chebyshev array realizes the Chebyshev array with fixed low side lobe, which is useful for close test)
GA_sparse
- 本程序使用遗传算法对稀布阵列进行优化,以获得一组旁瓣电平较低的稀布阵排布(this code makes array sparse by using ga)
GSCBeamformer
- 广义旁瓣消除,matlab示例代码,波束成形经典方法(Generalized sidelobe elimination, MATLAB sample code, beamforming classic method)
SAR窄波束
- SAR窄波束运动补偿仿真,含目标切片响应与旁瓣比计算,包括rd成像与cs成像两种仿真