Reproduite en français dans le document Anglais (page 565, 566, 567 of 579)

COMMENT ET QUANT LES DEUX AUTORITÉS GOUVERNEMENTAL QUÉBEC ET OTTAWA EN FURENT INFORMÉ

Gouvernement du Canada ministère des communications

(Almanach page 722-723) The Abridgment Photocopy = 0028 - Almanach - Page 566 (722-723)

Services Internationaux

Téléglobe Canada, une société d'État fournie aux Canadiens toute la gamme des services de communication externe: téléphone, télégraphe, télex, radio téléinformatique.

La société utilise un réseau mondial d'installations de télécommunication notamment les câbles sous-marins transocéaniques et les circuit de telecommunications par satellite. Téléglobe coordonne les services de télécommunication externe du Canada avec ceux des autre pays.

 How and When OTTAWA AND QUEBEC  GOVERNMENT AUTHORITY were informed

English Translation of: Almanac description of the Canadian Videotext system, rob copy name:  Télidon

0028 - Almanach - Page 566 (722-723) 0029 - Almanach - Page 567 (724-725)

Almanac description of the Canadian Videotext system, rob copy name:  Télidon

From the Canadian Almanac description of the Canadian Videotext system and graph. Robbed a copy of one given name identifying it's principal part of the ACILR-CDRIL new technology is combined different networks in one and communicate in same time to this different network (in their own language (or others by computers ) of command named it by different name like the "GPS"(GLS) including  the tracking system, the wireless telephone , and the internet to named the most popular and identify here in 1984 name:Télidon

 You are able to evaluate the time of the ACILR-CDRIL chart development , estimated the "History of the Fiber Optic" and estimated (French doc) how the Canadian and the Quebec government were informed

Fibres Optique

La transmission par fibres optique consiste a employer des fibres de verres mince comme des cheveux pour acheminer des impulsions lumineuses à haute  fréquence. Chacune de ces fibres peut transmettre des milliers de signaux de plus que les fibres de cuivre utilisés jusqu'à ce jours dans les réseaux téléphonique.

Le gouvernement fédéral et l'industrie Canadien  on fait oeuvre de pionnier en lançant en 1981 la première expérience pilote à l'aide de cette technologie dans deux collectivités rurales du Manitoba (second province française Canadienne) soit : Elie et St. Eustache. Les lignes téléphonique non partagé, soit cablodiffusion, la ....

Téléglobe Canada (Almanach page 725)

.....radiodiffusion FM en stéréophonie et l'usage du télidon sont offert dans le cadre de ce projet./

Anik B a été le premier satellite polyvalent du globe: il a servie à des fin commercial et expérimental. Les services fournis par Anik B comprennent notamment: la radiotélédifusion direct dans les régions éloigné, la collecte de nouvelles à l'aide d'une station terrienne transportable, la téléenseignement, les télécommunication communautaires et des services administratif. En 1982 les satellites de series..../.

....Anick C et Anik D seront lancé rehaussant une fois de plus les compétences de la prépondérance du Canada en ce domaine. Plus d'une quarantaine de société sont aujourd'hui qualifié pour oeuvrer dans le domaine des technique spatial.

GPS

The GLS renamed by the Canadian Government: GPS

Canadian Extract of Page 170 - of 579 in the Doc.

Canadian Extract of Page 171 - of 579 in the Doc.

Page 5

EXTRACT from:

Canadian Extract of Page 170 - of 579 in the Doc.

By this Canadian Extract, you can understood by the new computer with the new technology measurement accuracy, the geocentric ellipsoid; the size, shape, and orientation of that ellipsoid based on the best estimates available at the time 1977, it was selected. had improved and when the new NAD83 datum.

Page 5

Guidelines for Managing a GPS Based Control System in the Maritime Provinces

2.0 DATUM

Coordinates for the GPS based survey control network in the Maritimes will be based upon the North American Datum of 1983 (NAD83), as realized through the Canadian Spatial Reference System in 1995 (CSRS95).

This realization of the datum will be referred to as NAD83 (CSRS95).

2.1 Current Datum

The NAD83 (CSRS95) datum will replace the current geodetic datum in the Maritimes, which is the Average Terrestrial System of 1977 (ATS77). ATS77 was based on a geocentric ellipsoid; the size, shape, and orientation of that ellipsoid were based on the best estimates available at the time it was selected. However, these estimates continued to be improved and when the new NAD83 datum was officially defined several years later, it utilized a new ellipsoid, which reflected those improvements.

2.2 NAD83 The NAD83 datum is based upon the Geodetic Reference System of 1980 (GRS80) ellipsoid. For an outline of some of the parameters that define NAD83, the reader is referred to Appendix "B". The first major realization of NAD83 in North America was via a massive re-adjustment project. In Canada, this realization is often referred to as NAD83 (1986).............

EXTRACT from:

Canadian Extract of Page 171 - of 579 in the Doc.

page 6

Guidelines for Managing a GPS Based Control System in the Maritime Provinces

The federal governments of both Canada and (by the international patent exchange and the 1983 protocol), the United States in 1983, have recognized this problem, and have begun the implementation of highly accurate GPS networks to better support modern positioning techniques.

P.S. it's at that time also that Lachapel made is Macaraibo Venezuela trip with a low switching board.

In Canada, the Geodetic Survey Division has undertaken to establish a high precision GPS network, i.e., the CBN, in cooperation with the provincial agencies.

With the implementation of the CBN (CBN = Canadian Base Network), within the context of the CSRS, there will be a new and highly accurate realization of NAD83 within Canada. The new realization of NAD83, based on the CSRS (CSRS = Canadian Spatial Reference) System, is a 'top-down' realization, and coordinates produced within this new realization are the most accurate NAD83 coordinates presently available. NAD83, as realized through the CSRS (CSRS = Canadian Spatial Reference), is fully compatible with GPS positioning techniques.

The distinction between the two realizations is important. It is possible for NAD83 (CSRS95) coordinates and NAD83 (1986) coordinates for the same control point to differ by several decimetres, or even more on occasion.

2.3 NAD83: Relationship to WGS84 and ITRF

The ellipsoid and coordinate reference frame of NAD83 were defined in such a way as to make them almost identical to the ellipsoid and coordinate reference frame utilized in the World Geodetic System of 1984 (WGS84), the reference system in which the Global Positioning System operates.

A comparison of the ellipsoid parameters used for WGS84 and NAD83 can be found in Appendix “B”. An examination of these parameters will confirm that, for most intents and purposes, both the ellipsoids and the coordinate reference systems of NAD83 and WGS84, as originally defined, could be considered equivalent.

Although the coordinates for the Defense Mapping Agency's (DMA's) GPS tracking stations were determined in the WGS84 system, the original computations to determine these positions relied heavily upon Doppler satellite techniques. As techniques such as Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), and GPS continued to mature, the estimates for a true geocentric system have continued to improve,

Guidelines for Managing a GPS Based Control System in the Maritime Provinces Page 6 The federal governments of both Canada and the United States have recognized this problem, and have begun the implementation of highly accurate GPS networks to better support modern positioning techniques. In Canada, the Geodetic Survey Division has undertaken to establish a high precision GPS network, i.e., the CBN, in cooperation with the provincial agencies.

With the implementation of the CBN, within the context of the CSRS, there will be a new and highly accurate realization of NAD83 within Canada. The new realization of NAD83, based on the CSRS, is a 'top-down' realization, and coordinates produced within this new realization are the most accurate NAD83 coordinates presently available. NAD83, as realized through the CSRS, is fully compatible with GPS positioning techniques.

The distinction between the two realizations is important. It is possible for NAD83 (CSRS95) coordinates and NAD83 (1986) coordinates for the same control point to differ by several decimetres, or even more on occasion.