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1. (WO2018009423) MULTI-FREQUENCY UNWRAPPING
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Pub. No.: WO/2018/009423 International Application No.: PCT/US2017/040159
Publication Date: 11.01.2018 International Filing Date: 30.06.2017
IPC:
G06F 17/10 (2006.01) ,G01S 17/36 (2006.01) ,G01S 17/89 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
10
Complex mathematical operations
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02
Systems using the reflection of electromagnetic waves other than radio waves
06
Systems determining position data of a target
08
for measuring distance only
32
using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves
36
with phase comparison between the received signal and the contemporaneously transmitted signal
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88
Lidar systems, specially adapted for specific applications
89
for mapping or imaging
Applicants:
MICROSOFT TECHNOLOGY LICENSING, LLC [US/US]; One Microsoft Way Redmond, Washington 98052-6399, US
Inventors:
PERRY, Travis; US
SCHMIDT, Mirko; US
GODBAZ, John; US
FENTON, Michael; US
Agent:
MINHAS, Sandip; US
CHEN, Wei-Chen Nicholas; US
DRAKOS, Katherine J.; US
HINOJOSA, Brianna L.; US
HOLMES, Danielle J.; US
SWAIN, Cassandra T.; US
WONG, Thomas S.; US
CHOI, Daniel; US
HWANG, William C.; US
WIGHT, Stephen A.; US
CHATTERJEE, Aaron C.; US
Priority Data:
15/204,73307.07.2016US
Title (EN) MULTI-FREQUENCY UNWRAPPING
(FR) DÉROULEMENT DE PLUSIEURS FRÉQUENCES
Abstract:
(EN) The time-of-flight system disclosed herein includes a frequency unwrapping module configured to generate an input phase vector with M phases corresponding to M sampled signals from an object, determine an M-1 dimensional vector of transformed phase values by applying a transformation matrix (T) to the input phase vector, determine an M-1 dimensional vector of rounded transformed phase values by rounding the transformed phase values to a nearest integer, and determine a one dimensional lookup table (LUT) index value by transforming the M-1 dimensional rounded transformed phase values. The index value is input into the one dimensional LUT to determine a range of the object.
(FR) La présente invention concerne un système de temps de vol comprenant un module de déroulement de fréquence, conçu pour générer un vecteur de phase d'entrée, dont M phases correspondent à M signaux échantillonnés provenant d'un objet ; pour déterminer un vecteur dimensionnel M-1 de valeurs de phase transformées, par application d'une matrice de transformation (T) au vecteur de phase d'entrée ; pour déterminer un vecteur dimensionnel M-1 de valeurs de phase transformées arrondies, par arrondissement des valeurs de phase transformées jusqu'à un entier le plus proche ; et pour déterminer une valeur d'indice de table de correspondance unidimensionnelle (LUT), par transformation des valeurs de phase transformées arrondies M-1. La valeur d'indice est entrée dans la table de correspondance unidimensionnelle pour déterminer une plage de l'objet.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)