ID |
原文 |
译文 |
26535 |
针对水下对抗建模中随机误差加入的合理性及复杂环境实时细致再现的问题,提出了一种基于高层体系结构(high level architecture,HLA)和军用仿真平台Flames构建一个可定制、可重用的水下对抗视景系统的设计方法,引入基于分形布朗运动(fractional Brownian motion,fBm)特征约束的随机误差来构建仿真模型,同时开发出基于开放场景图(open scene graph,OSG)视景引擎的海面和水下空间,充分利用图形处理单元(graphicprocessing unit,GPU)实现海面和海底地形等的快速纹理映射及渲染。 |
For underwater against the rationality of the random error to join in the modeling and complex environment real-time detailed representation problem, put forward a kind of based on high level architecture (high level architecture, the HLA) Flames and military simulation platform to build a custom, reusable design method of underwater visual system, introduced based on the fractal brown motion (fractional Brownian motion, the fBm) feature constraint random error to build simulation model, and developed based on open scene graph (open scene graph, OSG) engine surface and underwater visual space, make full use of graphics processing units (graphicprocessing unit, GPU) of the surface and bottom topography fast texture mapping and rendering. |
26536 |
该系统能适应潜-舰、直升机-潜等多种水下对抗样式的视景仿真需求。 |
The system can adapt to dive - ships and helicopters - dive underwater combat style of visual simulation requirements. |
26537 |
实际应用结果表明,该系统具有较好的实时性和视觉效果。 |
Practical application results show that the system has good real-time performance and visual effect. |
26538 |
以正弦型非线性调频信号为载波样本,提出一种非单频波带通调制方法——正弦型非线性调频键控(sine non-linear chirp keying,SNCK)。 |
Sine type nonlinear frequency modulation signal as the carrier sample, puts forward a kind of single frequency - sine wave band modulation method type nonlinear frequency modulation keying (going non - linear chirp keying, SNCK). |
26539 |
通过调整时间-带宽积和频率变化曲线频率等参数,SNCK可实现满足不同信道环境和服务质量需求的无线通信。 |
By adjusting the time bandwidth product and parameters such as frequency, frequency variation curve SNCK can realize satisfy different wireless channel environment and the quality of service requirements. |
26540 |
同时,由于采用非单频波作为载波样本,SNCK具有较好的多普勒频移抑制能力。 |
At the same time, due to the adoption of single frequency wave as the carrier sample, SNCK has good inhibiting doppler frequency shift. |
26541 |
构建SNCK的数学模型,分析已调信号正交化设计方法、频域特征及信道适应能力等性能。 |
To build the mathematical model of SNCK, analyze the modulated signal orthogonalization design method, frequency domain characteristics and properties, such as channel adaptive capacity. |
26542 |
理论分析和实验结果表明:相较于甚小线性调频键控,SNCK具有相近的高白噪声抑制能力和频域能量集中度;相较于最小频移键控,SNCK具有更强的多普勒频移抑制能力。 |
Theoretical analysis and experimental results show that compared with linear FM keying, little SNCK with similar high white noise suppression ability and the frequency domain energy concentration;Compared with the minimum frequency shift keying, SNCK has better capable of suppressing doppler frequency shift. |
26543 |
SNCK可作为通信终端高速率运动场景下的变速率无线通信系统的带通调制方案。 |
SNCK can serve as a communication terminal under the high speed motion scene bandpass modulation scheme with variable speed rate wireless communication system. |
26544 |
针对多智能体(Agent)系统在未知环境中自主协作规划存在任务死锁及协作效率不高的问题,提出一种基于改进蚁群算法的多Agent协作策略,并用于多Agent协作搬运中。 |
For multi-agent system (Agent) in unknown environment, the independent collaborative planning task deadlock and collaboration efficiency not high question, proposes an improved ant colony algorithm based on multi Agent cooperation strategy, and used in multiple Agent cooperation handling. |