| 1. | Ionosphere decontamination of high frequency radar echoes
高频雷达回波信号去电离层污染 |
| 2. | A pilot system of high frequency radar has been built in hit
哈尔滨工业大学已建立了高频雷达的试验系统。 |
| 3. | Therefore , research on distributed array becomes urgency
因此需要开展高频雷达分布式阵列天线的研究工作。 |
| 4. | Optimal antenna radiation pattern integration for multi - beam forming in high frequency radar
高频雷达多波束最优天线方向图综合 |
| 5. | High - frequency software defined radar ( hfsr ) is the combination of the software radio technology and high - frequency radar
软件高频雷达是软件无线电技术与高频雷达的结合。 |
| 6. | The high - frequency software defined radar project is one of the 211 national subject building project
本文的主要研究内容是软件高频雷达实时信号处理软件的设计及其工程实现。 |
| 7. | For ensure the reliability of hf radar in congested environment , the radar signal with discontinuous spectra has attracted increasing attentions
为保证高频雷达在恶劣环境下正常工作,非连续谱雷达信号日益受到重视和研究。 |
| 8. | This paper introduces several methods retrieving wind direction from hf radar echo doppler spectrum and analyses the feature of those methods
本论文介绍了现有的从高频雷达回波多普勒谱中提取风向的几种方法，分析了这几种方法的不足之处。 |
| 9. | It introduces the phase noise measurement method of hf radar ' s transmitting signal , especially the measurement method of low phase noise which is close - in to carrier frequency
指出了在高频雷达发射信号相位噪声的测量，特别是近载频低相位噪声的测量。 |
| 10. | The ionosphere contamination imposing on the high - frequency ( hf ) radar echoes has to be suppressed since it severely degrades the detection performance of hf radar
摘要高频雷达回波信号受到电离层污染从而影响了雷达的探测性能，因此需要进行去污染处理。 |
