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A new leap in accuracy! In 2021, P-10 Pro professional HD GNSS data logger has been launched. It is equipped with the most advanced dual-frequency positioning technology, which increases the positioning accuracy by 5 times. It reaches the sub-meter level for the first time, satisfying professional users' pursuit of an ultra-high-precision track! GNSS products are widely used, but the single-frequency L1 products have a bottleneck: low positioning accuracy that is difficult to improve.
The new L5 frequency has come as a
response to the shortcomings of single-frequency L1 and
demands for higher positioning!
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Multi-constellation positioning capability GNSS stands for Global Navigation Satellite System. P-10 Pro supports multi-constellation in the world: GPS L1 and L5; GLONASS L1; Galileo E1 and E5a; BeiDou B1; QZSS L1 and L5; IRNSS L5. Compared with the single-constellation GPS positioning system, the GNSS multi-constellation positioning system can ensure rapid and effective positioning at any location in the world, while improving positioning accuracy and reliability. |
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GPS receiver |
P-10 Pro |
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Is dual-frequency positioning really better? Yes! |
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Effectively eliminate Ionospheric and multipath interference Compared with single-frequency, dual-frequency can effectively eliminate ionospheric errors and counter multipath effects, both of which are major factors behind errors in GNSS positioning accuracy. P-10 Pro, which supports dual-frequency L1+L5, can simultaneously monitor signals on two different frequencies on the same satellite, compare and analyze the data, and correct ionospheric delay to eliminate errors caused by the atmosphere.
In challenging environments (such as urban canyons,
high-rise buildings and places covered by trees), satellite
signals become messy after being reflected by buildings and
intertwined with the correct direct signals, and the
equipment has a large positioning accuracy error in this
case, i.e. the multipath effect. Dual-frequency technology
can distinguish the real signal from the signal reflected by
the building, thereby reducing errors caused by multipath
effects. |
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“Overall, the multi-constellation, dual-frequency receiver provided more robust and accurate positional solutions compared with single-frequency smartphones.”* * Julián Tomaštík, Juliána Chudá, Daniel Tunák, František Chudý, Miroslav Kardoš, Advances in smartphone positioning in forests: dual-frequency receivers and raw GNSS data, Forestry: An International Journal of Forest Research, Volume 94, Issue 2, April 2021, Pages 292–310 P-10 Pro is an epoch-making HD GNSS data logger. It can achieve lane-level positioning accuracy in the open air, and boasts a number of excellent anti-interference abilities in a challenging environment. P-10 Pro is more stable, more accurate, more professional! Next, look at the actual tracks of P-10 Pro! |
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What does the HD GNSS of P-10 Pro refer to? High Definition Global Navigation Satellite System. It refers to the high-precision positioning performance that P-10 Pro can provide: Horizontal direction 0.5m/CEP(50%); 1.5m/CEP(95%). It boasts lane-level positioning accuracy. CEP refers to Circular Error Probable. 0.5m/CEP(50%)* means that the probability of the track points falling within a 0.5m radius is greater than 50%; 1.5m/CEP(95%)* means that the probability of the track points falling within a 1.5m radius is greater than 95% .
P-10 Pro also has high absolute altitude accuracy with an
error of only ±15 m *, comparable to the altitude
measurement ability of a barometer. |
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Typical accuracy of single-frequency receiver: 2.5m/CEP(50%), 8m/CEP(95%) |
Accuracy of P-10 Pro: 0.5m/CEP(50%), 1.5m/CEP(95%) |
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Track points have a larger spread range. |
Track points have a smaller spread range. |
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Static drift test
Test purpose: To evaluate the static drift suppression
performance of the receiver (P-10 Pro config file parameter:
Speedmask=OFF). |
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Single-frequency receiver |
P-10 Pro |
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The static drift range is large. |
The static drift range is small. |
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Walking track test
Test purpose: Walk around the outer circle of the tennis
court and return to the start point to evaluate the accuracy
of the track at an ultra-low speed. |
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Single-frequency receiver |
P-10 Pro |
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The track is quite different from the actual route. |
The track is more in line with the actual route. |
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Low-speed driving track test
Test purpose: Record three consecutive times along the same
route to evaluate the smoothness of the low-speed driving
track. |
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Single-frequency receiver |
P-10 Pro |
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The track is quite different from the actual route, and the three tracks do not completely coincide. |
The track is basically the same as the actual route, and the three tracks are basically completely consistent. |
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Driving test
Test purpose: On a two-way seven-lane road, record a
different lane each time to evaluate whether the adjacent
lane can be distinguished. |
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Single-frequency receiver |
P-10 Pro |
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The tracks of adjacent lanes cross each other, and some tracks have large deviations. |
The tracks of adjacent lanes do not cross, and the adjacent lanes can be distinguished. |
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Altitude test
Test purpose: Record three consecutive laps around the same
area. Check whether the highest point appears in the same
position, evaluate the value of each highest point, and
evaluate the uniformity of the height value. The actual
height difference is only ten meters. |
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Single-frequency receiver |
P-10 Pro |
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The single-frequency device has the wrong height peak position due to the multipath effect. |
The highest altitude of each lap appears in the correct position, and the altitude difference between the three times is only 2 meters. |
