wlanSpectralFlatness
Syntax
Description
tests spectral flatness by using the channel estimate pass
= wlanSpectralFlatness(chanEst
,format
,cbw
)chanEst
for the
specified WLAN packet format format
and channel bandwidth
cbw
. The function determines the test result by comparing the
spectral flatness measurements to the standard-specified range.
tests spectral flatness by using the channel estimate pass
= wlanSpectralFlatness(chanEst
,format
,cbw
,preamblePunc
)chanEst
for the
specified non-high-throughput (non-HT) packet, along with the specified channel bandwidth
cbw
and the preamble puncturing flag
preamblePunc
. The function determines the test result by comparing
the spectral flatness measurements to the standard-specified range. (since R2025a)
tests spectral flatness by using the channel estimate pass
= wlanSpectralFlatness(chanEst
,format
,cbw
,ruIndices
)chanEst
for the
specified high efficiency (HE) packet, along with the specified channel bandwidth
cbw
and resource unit (RU) indices ruIndices
.
The function determines the test result by comparing the spectral flatness measurements to
the standard-specified range.
tests spectral flatness by using the channel estimate pass
= wlanSpectralFlatness(chanEst
,format
,cbw
,ruIndices
,ruSizes
)chanEst
for the
specified extremely high-throughput (EHT) packet, along with the specified channel bandwidth
cbw
, the resource unit (RU) indices ruIndices
,
and the RU sizes of each RU or multiresource unit (MRU) ruSizes
. The
function determines the test result by comparing the spectral flatness measurements to the
standard-specified range. (since R2025a)
tests spectral flatness by using the channel estimate pass
= wlanSpectralFlatness(chanEst
,format
,cbw
,ruIndices
,ruSizes
,preamblePunc
)chanEst
for an
extremely high-throughput (EHT) packet, along with the specified channel bandwidth
cbw
, the resource unit (RU) indices ruIndices
,
the RU sizes of each RU or MRU ruSizes
, and the preamble puncturing
flag preamblePunc
. The function determines the test result by comparing
the spectral flatness measurements to the standard-specified range. (since R2025a)
[
also returns the power deviation of each test subcarrier from the average power level across
lower test subcarriers, pass
,deviation
,testSC
] = wlanSpectralFlatness(chanEst
,format
,cbw
)deviation
. The function splits the test
subcarrier indices into upper and lower sets based on their absolute frequency and returns
these indices as testSC
.
Examples
Input Arguments
Output Arguments
References
[1] IEEE P802.11be/D1.2. “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment 8: Enhancements for Extremely High Throughput (EHT).” Draft Standard for Information technology — Telecommunications and information exchange between systems. Local and metropolitan area networks — Specific requirements.
[2] IEEE Std 802.11ax-2021 (Amendment to IEEE Std 802.11-2020). “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. Amendment 1: Enhancements for High Efficiency WLAN.” IEEE Standard for Information Technology — Telecommunications and Information Exchange between Systems. Local and Metropolitan Area Networks — Specific Requirements.
[3] IEEE Std 802.11-2020 (Revision of IEEE Std 802.11-2016). “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications.” IEEE Standard for Information Technology — Telecommunications and Information Exchange between Systems — Local and Metropolitan Area Networks — Specific Requirements.