航監(jiān)測(cè)與防護(hù)設(shè)備（英文）.jpg)
The Beidou spatiotemporal security isolation device, which is safe, controllable, stable, and continuous, helps users establish a complete, reliable, and anti attack spatiotemporal defense system.
The NPS4000 adopts navigation digital signal fast demodulation, solution processing technology, and high-precision positioning, navigation, and time service signal simulation technology, which can automatically identify deceptive interference signals in the free space environment, provide timely warnings, remind users, and quickly switch navigation signals or eliminate interference signals to avoid interference to the backend GNSS navigation time service terminal, resulting in deviation or error in the output reference clock information. The NPS4000 can be connected in series between the original antenna and timing equipment, without the need to change the original timing equipment and antenna system.
NPS4000 can help users build a secure and powerful defense system, enabling them to better monitor, respond, defend, and eliminate threats, ensuring the normal operation of the system timing network.
安全可控、穩(wěn)定連續(xù)的北斗時(shí)空安全隔離裝置，幫助用戶建立完整可靠且抗攻擊能力強(qiáng)的時(shí)空防御系統(tǒng)。
The scripted editing ability of the testing plan planning function and testing process allows users to plan and design the testing plan according to the testing requirements before the experiment, and edit the testing process. Users can manage and configure the testing scenarios and processes according to the testing needs of different receivers and different testing tasks and objectives, and use them as different testing templates.
Perform manual or batch Test automation based on test scenarios and test processes, and have one click Test automation function for user terminal technical indicators.
After each test project is completed, it can automatically analyze and evaluate the test data and generate test reports, with the function of automatic analysis and evaluation of user terminal technical indicators.
Multiple testing and evaluation modes are available, including automatic, manual, and single mode.
Real time analysis and evaluation of test data, capable of analyzing and comparing test data in real time, completing functional and performance indicators such as pseudo range measurement accuracy, positioning accuracy, channel consistency, bit error rate, etc., and automatically generating data processing reports.
The real-time analysis and evaluation function of test data allows for knowing the statistical results of indicators without waiting until the end of the test, facilitating the timely termination of problematic receiver tests and saving testing time.
Comprehensive display function: It can comprehensively display various information such as work status, simulation scenarios, positioning results, data processing reports, etc. in various forms such as data, tables, graphics, etc.
Database management function, which can automatically classify, store, query, and count simulation and test data, and has automatic data storage and retrieval functions.
Equipped with automatic evaluation of test results and automatic generation, printing, and export of test reports.安全可控、穩(wěn)定連續(xù)的北斗時(shí)空安全隔離裝置，幫助用戶建立完整可靠且抗攻擊能力強(qiáng)的時(shí)空防御系統(tǒng)。
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防護(hù)信號(hào)頻點(diǎn) |
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BDS |
B1、B2、B3（含北斗三號(hào)） |
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GPS |
L1、L2、L5 |
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GLONASS |
L1、L2 |
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Galileo |
E1、E5 |
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信號(hào)通道數(shù)目 |
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每頻點(diǎn)不少于8個(gè)（即當(dāng)檢測(cè)到外界存在欺騙信號(hào)時(shí)，設(shè)備可自動(dòng)切斷欺騙信號(hào)，同時(shí)本地可產(chǎn)生防護(hù)信號(hào)（即模擬導(dǎo)航信號(hào)）供GNSS導(dǎo)航授時(shí)終端接收） |
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欺騙防護(hù)性能 |
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時(shí)間同步精度 |
≤50ns護(hù) |
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授時(shí)精度 |
100ns |
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警告時(shí)間 |
小于12s |
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維持能力 |
不低于60分鐘（標(biāo)配授時(shí)精度優(yōu)于500ns） |
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信號(hào)功率 |
-125dBm～-90dBm |
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開機(jī)首次授時(shí)時(shí)間 |
不大于30分鐘 |
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欺騙信號(hào)識(shí)別時(shí)間 |
≤1min（正常授時(shí)后加入欺騙信號(hào)） |
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≤10min（正常授時(shí)前加入欺騙信號(hào)） |
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連續(xù)工作時(shí)間 |
7×24h（自動(dòng)重啟復(fù)位） |
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物理特性 |
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電源特性 |
220V/AC |
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整機(jī)尺寸 |
標(biāo)準(zhǔn)1U高度19英寸上架式機(jī)箱 |
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整機(jī)重量 |
≤6kg |
| 仿真信號(hào)規(guī)模 | |
| 衛(wèi)星通道數(shù)量 | |
| 多徑信號(hào)數(shù)量 | |
| 信號(hào)精度 | |
| 偽距精度 | |
| 偽距變化率精度 | |
| 通道一致性 | |
| 信號(hào)動(dòng)態(tài) | |
| 仿真高程 | |
| 相對(duì)速度 | |
| 相對(duì)加速度 | |
| 相對(duì)加加速度 | |
| 外部軌跡實(shí)時(shí)性 | |
| 信號(hào)延遲 | |
| 數(shù)據(jù)更新率 | |
| 信號(hào)質(zhì)量 | |
| 雜波抑制 | |
| 諧波抑制 | |
| 信號(hào)電平 | |
| 電平調(diào)節(jié)范圍 | |
| 電平調(diào)節(jié)步進(jìn) | |
| 物理和電氣性能 | |
| 整機(jī)尺寸 | |
| 整機(jī)重量 | |
| 電源、功耗 | |
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