WO2009021438A1 - Procédé de localisation satellite numérique utilisant le spectre satellite - Google Patents

Procédé de localisation satellite numérique utilisant le spectre satellite Download PDF

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Publication number
WO2009021438A1
WO2009021438A1 PCT/CN2008/071896 CN2008071896W WO2009021438A1 WO 2009021438 A1 WO2009021438 A1 WO 2009021438A1 CN 2008071896 W CN2008071896 W CN 2008071896W WO 2009021438 A1 WO2009021438 A1 WO 2009021438A1
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WO
WIPO (PCT)
Prior art keywords
satellite
spectrum
digital
stored
antenna
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Application number
PCT/CN2008/071896
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English (en)
French (fr)
Inventor
Hailong Lv
Original Assignee
Hailong Lv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hailong Lv filed Critical Hailong Lv
Publication of WO2009021438A1 publication Critical patent/WO2009021438A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction

Definitions

  • the present invention relates to satellite signal measurement techniques, and more particularly to a method of digital satellite positioning via satellite spectrum.
  • an object of the present invention is to provide a method for positioning a satellite accurately and intuitively, and enabling a user to quickly locate a desired satellite through the satellite spectrum for digital satellite positioning through changes in the satellite spectrum.
  • a method of digital satellite positioning through a satellite spectrum comprising the following steps:
  • the pre-stored satellite spectrum is first called up by the storage unit, and when the satellite antenna is adjusted, the currently measured satellite spectrum is compared with the pre-stored satellite spectrum;
  • the system locks the digital signal and displays the desired digital satellite when the digital satellite signal is locked.
  • the method of digital satellite positioning through the satellite spectrum of the present invention is simple in operation, and the digital satellite sought can be perceived in a wider range of angles than the conventional homing method.
  • Figure 1 is a comparison of the perception angle of the present invention with a conventional homing method
  • Figure 2 shows the spectrum of the pre-stored required satellites
  • Figure 3 shows the spectrum of the satellite and the pre-stored spectrum when the satellite antenna is just connected
  • Figure 4 shows the satellite spectrum and the pre-stored spectrum when the satellite antenna is adjusted to gradually approach the correct direction.
  • Figure 5 shows the spectrum and pre-stored spectrum when the satellite is aligned.
  • the direction A is the correct satellite direction
  • B is the sensing range of the traditional homing method
  • C is the sensing range of the invention.
  • the traditional homing method can sense the required satellites within the B angle range, while the traditional homing method cannot distinguish the weak satellite signals from the noise signals.
  • the present invention can determine whether it is a satellite signal or a noise signal by comparing whether the continuous spectrum and the pre-stored spectrum are similar.
  • the spectrum curve in Figure 2 is the spectrum of the desired satellites stored in the system. This spectral curve is called from the memory location of the system before finding the satellite.
  • the spectrum curve 1 in Fig. 3 is the pre-stored satellite spectrum, and the spectrum curve 2 is the actual measurement spectrum. It can be seen from Fig. 3 that there is a certain difference between the spectrum curve 2 and the spectrum curve 1, and the amplitude is also much smaller, so the direction of the satellite antenna needs to be adjusted.
  • the spectrum curve 1 in Fig. 4 is the pre-stored satellite spectrum, and the spectrum curve 2 is the actual measurement spectrum.
  • Figure 4 By comparing Figure 4 with Figure 3, it can be seen that by adjusting the satellite antenna, the spectrum curve 2 is positive. Near the spectrum curve 1, it shows that the direction of the antenna is correct. Conversely, the direction of adjustment is wrong.
  • the spectrum curve 1 in Fig. 5 is the pre-stored satellite spectrum, and the spectrum curve 2 is the actual measurement spectrum. It can be seen from Figure 4 that the spectral curve 2 has coincident or is substantially close to the spectral curve 1. At this point, the system can determine the satellites that have been locked in conjunction with the measurement of the digital signal. When the digital satellite signal is locked, the display finds the desired digital satellite.
  • the main principle of the method for digital satellite positioning through the satellite spectrum of the present invention is: each satellite has a different spectrum, and when searching for the satellite position, it judges whether or not the lock is based on whether the measured spectrum agrees with the pre-stored spectrum.
  • the method of the present invention is applied to a digital satellite finder for positioning of a digital satellite, the installation of the satellite antenna is facilitated.
  • the method of digital satellite positioning by satellite spectrum of the present invention perceives the sought-after digital satellite over a wider range of angles than conventional homing methods.
  • the direction A is the correct satellite direction
  • B is the traditional range of star-seeking mode
  • C is the sensing range of the invention.
  • the traditional homing method can sense the required satellites within the B angle range, and the traditional homing method cannot distinguish the weak satellite signals from the noise signals.
  • the present invention can determine whether it is a satellite signal or a noise signal by comparing whether the continuous spectrum and the pre-stored spectrum are similar.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Description

一种通过卫星频谱进行数字卫星定位的方法 技术领域
本发明涉及卫星信号测量技术，特别是涉及一种通过卫星频谱进行 数字卫星定位的方法。
背景技术
目前， 现有的对数字卫星信号进行测量的方法都是基于模拟场强以 及数字信号的测量， 而很多初级用户并不是很了解各个参数的含义， 不 能根据参数变化很好地调整卫星天线， 给用户的使用与操作带来了极大 的不便。
发明内容
为了解决上述问题， 本发明的目的在于提供一种能够准确、 直观地 对卫星进行定位， 并能够使用户通过卫星频谱的变化来快速定位所需的 卫星的通过卫星频谱进行数字卫星定位的方法。
本发明的目的是通过以下技术方案实现的：
一种通过卫星频谱进行数字卫星定位的方法， 包括以下歩骤：
1 ) 将所需的卫星的频谱预存在系统的存储单元中；
2 )寻星时先由存储单元调出预存的卫星频谱， 在调整卫星天线时， 将当前测量到的卫星频谱与预存的卫星频谱进行对比；
3 ) 如果测量到的卫星频谱与预存的卫星频谱的曲线逐渐接近， 则 说明卫星天线正在逐渐对准卫星；
4) 当上述的两个卫星频谱接近相同时， 系统对数字信号进行锁定 判断， 当数字卫星信号锁定时， 显示找到所需的数字卫星。 本发明的通过卫星频谱进行数字卫星定位的方法操作简单， 可以在 比传统寻星方式更宽的角度范围内感知到所寻找的数字卫星。 附图说明
图 1为本发明与传统的寻星方式的感知角度的对比；
图 2为预存的所需卫星的频谱；
图 3为刚连接卫星天线时卫星的频谱以及预存频谱；
图 4为调整卫星天线，逐渐接近正确方向时的卫星频谱与预存频谱； 图 5为对准所需卫星时的频谱与预存频谱。 具体实施方式
为使本发明的目的、 技术方案及优点更加清楚明白， 以下参照附图和 具体实施例对本发明的通过卫星频谱进行数字卫星定位的方法进行详 细说明。
图 1中 A方向为正确的卫星方向， B为传统寻星方式的感知范围， C为本发明的感知范围。传统寻星方式在 B角度范围内能够感知所需的 卫星， 而大于 B角度时， 传统寻星方式不能区分微弱的卫星信号与噪声 信号。而本发明在 C角度范围内可以通过连续的频谱与预存的频谱对比 是否相似， 来判断是卫星信号还是噪声信号。
图 2中的频谱曲线是存储在系统中的所需卫星的频谱。在寻找卫星 之前， 从系统的存储单元中调出此频谱曲线。
图 3中的频谱曲线 1是预存卫星频谱，频谱曲线 2为实际测量频谱。 通过图 3可以看出频谱曲线 2与频谱曲线 1有一定的差异， 幅度也要小 的多， 因此需要调整卫星天线的方向。
图 4中的频谱曲线 1是预存卫星频谱，频谱曲线 2为实际测量频谱。 通过图 4与图 3的对比， 可以看出， 通过调整卫星天线， 频谱曲线 2正 在接近频谱曲线 1， 说明调整天线的方向是正确的。 反之调整的方向就 是错误的。
图 5中的频谱曲线 1是预存卫星频谱，频谱曲线 2为实际测量频谱。 通过图 4可以看到频谱曲线 2已经与频谱曲线 1重合或基本接近。此时 系统配合数字信号的测量就可以判断已经锁定所需的卫星。 当数字卫星 信号锁定时， 显示找到所需数字卫星。
本发明的通过卫星频谱进行数字卫星定位的方法的主要原理是： 每 个卫星的频谱不同， 在卫星位置寻找时， 根据测量到的频谱判断是否与 预存的频谱一致来判断是否锁定。 将本发明的方法应用于数字寻星仪， 用于数字卫星的定位时， 方便卫星天线的安装。
本发明的通过卫星频谱进行数字卫星定位的方法比传统寻星方式 在更宽角度范围感知到所寻找的数字卫星。图 1中 A方向为正确的卫星 方向， B为传统的寻星方式感知范围， C为本发明的感知范围。 传统寻 星方式在 B角度范围内能够感知所需卫星，而大于 B角度，传统寻星方 式不能区分微弱的卫星信号与噪声信号。而本发明在 C角度范围内可以 通过连续的频谱与预存的频谱对比是否相似， 来判断是卫星信号还是噪 声信号。

Claims

权 利 要 求 书
1.一种通过卫星频谱进行数字卫星定位的方法， 其特征在于包括以 下歩骤：
1 ) 将所需的卫星的频谱预存在系统的存储单元中；
2 )寻星时先由存储单元调出预存的卫星频谱， 在调整卫星天线时， 将当前测量到的卫星频谱与预存的卫星频谱进行对比；
3 ) 如果测量到的卫星频谱与预存的卫星频谱的曲线逐渐接近， 则 说明卫星天线正在逐渐对准卫星；
4) 当上述的两个卫星频谱接近相同时， 系统对数字信号进行锁定 判断， 当数字卫星信号锁定时， 显示找到所需的数字卫星。
PCT/CN2008/071896 2007-08-16 2008-08-06 Procédé de localisation satellite numérique utilisant le spectre satellite WO2009021438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100587947A CN101109796A (zh) 2007-08-16 2007-08-16 一种通过卫星频谱进行数字卫星定位的方法
CN200710058794.7 2007-08-16

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WO2009021438A1 true WO2009021438A1 (fr) 2009-02-19

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101109796A (zh) * 2007-08-16 2008-01-23 吕海龙 一种通过卫星频谱进行数字卫星定位的方法
CN103682632B (zh) * 2013-12-27 2017-11-24 珠海迈越信息技术有限公司 一种寻星方法及寻星仪

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