| 1. | Then the processing of echo signal is researched
然后研究了对回波信号的处理方法。 |
| 2. | The receiver must detect the position of available echoes in bi - and multistatic sar
受硬件发展的限制,目前很难实现对回波数据长时间的全程记录。 |
| 3. | The according pulse accumulation method is designed and realized , i . e . digitalizing the echo and synchronously accumulating them in ram
并设计了先对回波信号进行高速采样然后同步累加进行脉冲积累的方案。 |
| 4. | The article has a deep study on test control technique and echo processing methods for improving the ranging precision of 3 - d laser scanner
本文对三维激光扫描仪的测控系统技术及通过对回波信号进行处理来提高测距精度的方法进行了深入的研究。 |
| 5. | This paper deduces the optimum threshold expression under certain cost rule and relationship between the number of pulse accumulation and the increased ratio of echo ' s snr
本文推导了最佳门限电平的表达式和脉冲积累对回波信号信噪比的改善能力。 |
| 6. | In this paper , the mechanism of the ionosphere contamination from the ionosphere distortion is exposed for the first time by analyzing the process of hf radar signal processing
该文通过对高频雷达信号处理过程的分析，阐明了电离层扰动对回波信号污染的机理。 |
| 7. | Because the performance of analogue receiver is not good , the gain - and - phase errors of receivers are generated , which badly affected the image of sar
由于接收机模拟器件的非理想性和非稳定性，接收机对回波信号进行幅相调制，产生幅相误差，影响合成孔径雷达的成像结果。 |
| 8. | In the paper the methods to process weak echo by using dsp technology based on low snr of laser weak echo are presented . and the methods are simulated and calculated
摘要文章针对激光弱小回波信号的低信噪比，提出了运用数字信号处理技术对回波信号进行处理的方法，并进行了一系列仿真和计算。 |
| 9. | Chapter two introduces the principle of impulse radar and the digital information acquires method of embedded radar , including the sampling of echo and the acquisition of angle
第二章论述了脉冲式低分辨率雷达的工作原理，以及嵌入式雷达中信息的数字化录入，包括对回波的采样和方位数据的录入。 |
| 10. | We studied the characteristic of the signals and processing methods . spatially variant apodization algorithm is introduced to significantly reduce sidelobe levels without degrading mainlobe resolution
用sva的方法对回波信号加权,在有效抑制isar回波脉冲包络旁瓣电平的同时提高信号的主瓣分辨率。 |
