欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
传统的伪多普勒测向算法在高信噪比和高斯噪声环境下能较为精确地计算出到达方位角,但对于稳定分布噪声的顽健性较差。针对以上不足,提出了一种基于粒子滤波的双站伪多普勒定位方法。用粒子滤波对2个接收机的来波方位角进行联合估计,并通过非线性映射得到信源位置坐标估计,实现了方位角计算与双站定位的集成。仿真实验表明,当稳定分布参数α为1.4（中等脉冲程度）时,所提方法在低信噪比下的顽健性要显著优于传统方法,在高信噪比时估计精度与传统方法相当;当信噪比为10 d B时,所提方法在α〈1.9的情况下定位精度远高于传统方法。
英文摘要：
Traditional pseudo-Doppler bearing estimation algorithm could accurately calculate the angle of arrival（AOA） with Gaussian noise and high signal to noise ratio（SNR）, but it was less robust with stable distribution noise. To overcome these shortcomings, a dual-station pseudo-Doppler localization method based on the particle filtering was proposed. The method employed particle filtering approach to jointly estimate the AOA of both stations, then applied a non-linear mapping to acquire the source location, forming an integration of AOA calculation and dual-station localization. Simulations demonstrate that when the characteristic exponent of the stable distribution is in a medium degree, for example α =1.4, the proposed method is much more robust than the traditional method in low SNR circumstances, while maintaining the estimation accuracy of the traditional method when SNR is high. When SNR equals 10 d B, the positioning accuracy of the proposed method is much higher than the traditional method with α 1.9.
同期刊论文项目
同项目期刊论文
Improved particle filtering based algorithm for time delay and symbols joint estimation of PSK signa
A novel joint parameter estimation method based on fractional ambiguity function in bistatic multipl
Fractional Time Delay Estimation Algorithm Based on the Maximum Correntropy Criterion and the Lagran
Parameter estimation based on fractional lower order statistics and fractional correlation in wideba
Joint estimation of time difference of arrival and frequency difference of arrival for cyclostationa
U-shaped bow-tie magneto-electric dipole antenna with a modified horned reflector for ultra-wideband
A Differentially Driven Dual-Polarized Dual-Wideband Complementary Antenna for 2G/3G/LTE Application
Dual-Wideband Complementary Antenna with A Dual-Layer Cross-ME-Dipole Structure for 2G/3G/LTE/WLAN A
A novel covariation based noncircular sources direction finding method under impulsive noise environ
期刊信息
位置：