N9084EM0E Short Range Communication and IoT X-Series Measurement Application
技術概要
Short Range Communication and IoT Measurement Applications
The short range communication and IoT measurement applications transform the X-Series signal analyzers with multi-touch into standards-based RF transmitter testers. The applications provide fast, one-button RF conformance measurements to help you design, evaluate, and manufacture your transmitter. The measurement applications closely follow the standards, allowing you to stay on the leading edge of your design and manufacturing challenges.
X-Series Measurement Applications
X-Series measurement applications increase the capability and functionality of Keysight Technologies, Inc. signal analyzers to speed time to insight. They provide essential measurements for specific tasks in general-purpose, cellular communications, wireless connectivity applications, covering established standards or modulation types.
Applications are supported on both benchtop and modular, with the only difference being the level of performance achieved by the hardware you select.
X-Series measurement applications can help you:
- Gain more insight into device performance with intuitive display and graphs for your application. Select from our library of over 25 different measurement applications.
- Ensure that your design meets the latest standard. Updates are made to the X-Series measurement applications as standards evolve.
- Apply the same measurement science across multiple hardware platforms for consistent measurement results over your design cycle from R&D to production.
- Choose the license structure that meets your business needs. We provide a range of license types (node-locked, transportable, floating or USB portable) and license terms (perpetual or time-based).
Short Range Communication and IoT Measurement Application Top Features
802.15.4 O-QPSK modulation analysis
Figure 1 is an 802.15.4 O-QPSK modulation analysis at 2.45 GHz free ISM band showing constellation, spectrum, Raw time waveform, and error summary information including Offset EVM, EVM, Mag Error, Phase Error, Freq Error, Clock Error, I/Q offset, Quad Error, Gain Imbalance, Rho.
- Upper left: constellation
- Upper right: raw main time
- Lower Left: spectrum
- Lower right: Error summary metric
802.15.4 BPSK modulation analysis
Figure 2 is 802.15.4 BPSK modulation analysis at 915 MHz band with data rate at 40kb/s showing constellation, spectrum, Raw time waveform, and error summary information including EVM, Mag Error, Phase Error, Freq Error, I/Q offset, and amplitude drop
- Upper left: constellation
- Upper right: raw main time
- Lower Left: spectrum
- Lower right: Error summary metrics
ITU G.9959 Z-Wave modulation analysis
Figure 3 is ITU G.9959 Z-Wave GFSK modulation analysis at 868.48 MHz band with data rate as R3 100 kpbs showing constellation, spectrum, Raw time waveform, and error summary information including FSK Error, Mag Error, Carrier Freq Offset, Deviation, and Clock Error
- Upper left: constellation
- Upper right: raw main time
- Lower Left: spectrum
- Lower right: Error summary metrics
ITU G.9959 Z-Wave modulation analysis
Figure 4 is an G.9959 Z-Wave GFSK modulation analysis at 868.48 MHz band with data rate as R3 100 kpbs showing the decode results with PER, Error Packets and Total Packets (Total packet number can be specified manually under the Meas Setup-> Decode setting)
- Upper: PER results with error packets and total packets
- Lower: Decode bits
LoRa® modulation analysis
Figure 5 is LoRa® Chirp Spread Spectrum (CSS) modulation analysis at 915 MHz band with 125 kHz bandwidth showing the results with RF Spectrum, AF Spectrum, Demod waveform and error summary metrics including LoRa Deviation Peak+/-, (Pk- Pk)/2, RMS, Carrier Power, Carrier Frequency Error, Burst Length, Payload Length and Preamble Length
- Upper left: RF Spectrum
- Upper right: Demod waveform
- Lower left: AF spectrum
- Lower right: Error summary metrics
Figure 6 is LoRa® Chirp Spread Spectrum (CSS) modulation analysis at 915 MHz band with 125 kHz bandwidth showing the frequency drift results with Frequency Drift trace result, Frequency Drift result table including LoRa deviation, Carrier Power, Carrier Frequency Error, Burst Length, Payload length, Preamble length, Frequency Drift RMS, Pk+/Pk-, Max Hold Drift Pk+, Min Hold Drift Pk-
- Upper: Frequency Drift Result trace
- Lower: Frequency Drift Result Table
HRP UWB modulation analysis
HRP (High Rate Pulse Repetition Frequency) UWB (Ultra-Wide Band) technology is one of the PHY of the IEEE standard 802.15.4, in which it defines the PHY, MAC, and sublayers, with a focus on low-data-rate wireless connectivity and precision ranging. IEEE 802.15.4z is focusing on additional coding and preamble options, as well as improvements to existing modulations to increase the integrity and accuracy of ranging measurements, with a typical range of up 100 meters for the radio.
Figure 5 shows an example of HRP UWB signal modulation analysis (center as Channel 9 7987.2 MHz and bandwidth as 499.2 MHz) using Keysight PXI VXT M9415A. The picture bleow shows the HRP UWB impulse response correlated with a root raised cosine filter (top left window trace), spectrum trace (middle left window trace), transmit mask (top right window trace), RF envelope in time domain (middle right window trace), and result metrics (botton window.)
Results metrics can provide a bunch of meauremnt results including:
- Frequency error, chip clock error, Channel Power, Time Offset, RMARKER
- Main Lobe width, Main Lobe Peak, Side lobe peak, Side Lobe Location
- NRMSE, SHR/Data/STS NRMSE, SHR/Data/STS Avg Power and Peak Power
Definitions
- Specifications describe the performance of parameters covered by the product warranty.
- The specifications apply to single carrier case only, unless otherwise stated.
- 95th percentile values indicate the breadth of the population (≈2σ) of performance tolerances expected to be met in 95% of cases with a 95% confidence. These values are not covered by the product warranty.
- Typical values are designated with the abbreviation "typ." These are performance beyond specification that 80% of the units exhibit with a 95% confidence. These values are not covered by the product warranty.
- Nominal values are designated with the abbreviation "nom." These values indicate expected performance, or describe product performance that is useful in the application of the product, but is not covered by the product warranty.