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博客: #RADAR AND EW

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Wideband Oscilloscopes for MIMO radar testing being used by and engineer.
MIMO 雷达系统测试工具和技术 Friday, March 1, 2024
多输入多输出 (MIMO) 等现代技术要求宽带宽、相位一致和多通道分析。MIMO 雷达系统中的天线元独立运行，可覆盖较宽（通常为 180 度）的视场，无需进行定向调整。因此，扫描时间显著缩短。MIMO 雷达利用时间、频率或编码技术，在接收器元素中对每个发射信号进行区分，从而提取目标属性。 宽带示波器，例如米乐m6网页版登录入口 DPO70000SX 或 MSO/DPO70000DX 系列示波器，专为实现宽带宽和相位一致而设计，因此是一种理想的仪器。它支持中心频率、频谱宽度和分辨带宽 (RBW) 等参数的独立设置，与用于多通道控制和分析的 SignalVu VSA 5.3 软件版本配合使用，所得测试系统便是验证 MIMO 相控阵雷达的绝佳选择。对于获取可能具有不同中心频率、时隙或调制参数的信号，独立设置非常必要。 用于频谱分析的脉冲统计数据 TDM MIMO 雷达为每个元素分配一个时隙。对于每个通道的信号 …
AESA Radar Antenna
Pulse Radar Signal Analysis Wednesday, August 16, 2023
Radar applications today, whether found in defense or in aerospace, increasingly require analysis across multiple channels. For AESA antenna, transmitter and receiver module calibration both synchronization and wide bandwidth capture is important and being able to synchronize multiple channels for efficient calibration can be challenging. Radar DSP and system integrator engineers working in FPGA …
Multi-Beam Radar
The Need for Fully Configurable, Multi-Channel RF Analysis Tuesday, March 28, 2023
Engineers and researchers whose work involves MIMO, phased array, and beam forming need a signal analysis tool that offers wide bandwidth and multi-channel capability. Oscilloscopes would seem to be a good choice – except many are either not designed to analyze RF signals or are limited to analyzing a single RF channel at a time. But RF spectral and modulation analysis of multiple channels …
radar screen
4 Methods for Measuring Pulse Modulations in Radar Signals Friday, January 20, 2023
Modern radar signals make use of intra-pulse modulation or modulation on pulse (MOP), such as a linear frequency modulation (LFM), or some form of phase modulation (such as a bi-phase Barker code) to improve range resolution. They also include modulation on pulse to occupy more bandwidth and thus decrease the probability of intercept (POI). Additionally, intra-pulse modulation can include some …
Radar emitting ships interact with each other
3 Radiation Hazards (RADHAZ) and How to Mitigate Risk Wednesday, September 8, 2021
If you are involved in military, aerospace or defense and have been around radar and communication systems, with high-power RF transmitters and high-gain antennas, you are probably aware of the many risks associated with Radio Frequency Radiation (RFR) Hazards. RF emissions from these systems have the potential to cause catastrophic damage to operations and maintenance personnel, ordnance and …
Monitoring the wireless spectrum for interference
3 System Design Challenges with Spectrum Monitoring Tuesday, September 7, 2021
The wireless spectrum is a finite commodity that is tightly regulated, managed and shared by all nations, manufacturers and citizens, who risk being fined if they are caught operating outside of what's regulated or licensed. The presence of interference or other signals of interest creeping into one's band of wireless spectrum is a daily occurrence to some and is of great concern to many who may …
Military electronic warfare jet
Real-time Digital Signal Processing for Electronic Warfare Systems Monday, August 2, 2021
evalsuating and characterizing wideband communications, radar and electronic warfare systems in real time is challenging. Lacking a commercial off-the-shelf (COTS) alternative, some radar test teams stream test data to an inherently non-deterministic computing device such as a PC or laptop, inevitably leading to lost or missing data with no ability to verify that data is being recorded as expected …
Military Drone Detection
Setting up an Automated Drone Detection System Using Spectrum Analyzers Tuesday, May 25, 2021
In a few short years, the number of drones, or unmanned aerial vehicles (UAVs), purchased has soared. In the US alone, the FAA projects the small model hobbyist UAV fleet will more than double from an estimated 1.1 million vehicles in 2017 to 2.4 million units by 2022. Worldwide, Teal Group’s World Civil UAS Market Profile and Forecast projected in 2018 that non-military UAS production (Commercial …
Well defined pulses like these are a rarity in the real world.
Never Miss a Pulse Wednesday, December 2, 2020
The RF pulse characteristics of a radar reveal a great deal about a its capability. Electronic Warfare (EW) and Electronic lntelligence (ELINT) experts specialize in the study of these pulsed signals. Pulse characteristics provide valuable information about the type of radar producing a signal and what its source might be; sailboat, battleship, passenger plane, bomber, missile, etc. But how do you …
Arbitrary Waveform Generator Generating Radar Signals Graphic
3 Ways to Generate Radar Signals with Arbitrary Waveform Generators Friday, October 30, 2020
Radar signals’ qualities make them inherently difficult to recreate with a signal generator. Their combination of carrier frequency, modulation bandwidth, and in most cases, their pulsed nature creates a series of requirements difficult to match with existing instrumentation. The increasing complexity of radar systems, the growing use of complex modulation techniques such as Barker codes, poly …