Mobile Satellite Communications
Mobile Satellite Communications: Principles and Trends, 2nd edition
Author: M.Richharia
Errata
Issue 4.0, August 26, 2015
This version supersedes previous issues.
Errata
Chapter | Section | Page | Location within page | Correction (Deleted font for deleted text and underlined font for new text) |
2 | 2.2.1 | 40 | Line 7 | Eccentricity of a circular orbit is 1 0 |
2 | 2.2.1.1 | 49 | Line 10 | for an eccentricity of 0.1∘ [degree deleted – eccentricity is dimensionless] |
2 | 2.2.1.1 | 50 | Figure 2.10(a) | Delete degree symbol from eccentricity |
2 | Revision | Q 2.7 | Plot a graph of rate of change of argument of perigee ….. | |
3 | 3.2.1.1 | 92 | Last but one paragraph | Ie(𝜃)=the wanted ground station antenna gain towards interfering source, Pi =the satellite transmitter output of interfering carrier, Is(𝜑)=the interfering satellite’s antenna gain towards wanted ground station interfering source, lp = the path loss of interfering carrier towards wanted ground station |
3 | 3.2.1.1 | 94 | Applies to interference calculation algorithm | See solution 3, chapter 3 for further details and update |
3 | 3.3.1.1 | 103 | Figure 3.8 caption | Source: Figure 1 of ITU-R, 1992-1 1992b |
3 | 3.3.1 | 104 | Figure 3.9 caption | Source: Figure 1 of ITU-R, 1992-1 1992b |
3 | 3.3.1 | 105 | Para 3, line 10 | A technique for laboratory simulation of tropospheric scintillation has also been reported by this author (Reference: Simulate tropospheric amplitude scintillation Richharia, M.; Pratt, T. Microwaves & RF (ISSN 0745-2993), vol. 24, April 1985, p. 79- 82. |
3 | 3.3.1.1 | 109 | Table 3.2, entry ‘Dispersion (ps/Hz)’ | 1/f2 replace by 1/f3 |
3 | 3.3.1.1 | 109 | Table 3.2, entry ‘Scintillation’’ | 1/f2 replace by 1/f3 by |
3 | 3.3.1.1 | 109 | 4th-5th line below Table 3.2 | and therefore MSS service links use circularly polarized waves, |
3 | 3.3.3.1 | 111 | Equation 3.10 | S4-\ = 𝜎/ 𝜇 (Read as: S4 = 𝜎/ 𝜇 |
3 | 3.3.3.1 | 111 | First line below equation 3.10 | where 𝜎 denotes ensemble average standard deviation and 𝜇 is the mean signal power |
3 | 3.3.3.1 | 111 | Equation 3.11 | S4ꬰ ᾳ exp (-b/W) |
3 | References | 172 | ITU (1992a), ITUR Rec. 531-2, RPI Series, Geneva | A recent version of this recommendation is available: Rec.531-11, 2012 |
4 | 4.2.5 | 194 | Equation 4.6 | Equation should read as: 1/ N = N-1 ∑ n=0 Ane j Փṉ j( w∆n ) k T [See position of Փṉ |
6 | 6.2.1.2 | 275 | 2nd line from bottom of the page | … high up link carrier to noise ratio density in presence of nonlinearity (see Figure 6.3b, as an example where the ratio is>12). |
6 | 6.2.3 | 299 | Line before equation (6.2) | It can be readily shown that the edge-ofcoverage carrier to noise power density ratio (C/N) at the spacecraft from a user transmission via an omni-directional antenna is given as (Egami, 1995) |
6 | 6.2.3 | 299 | Equation (6.2) | For derivation of equation (6.2), please see solutions to chapter 6, revision question 4 in Solutions to revision question of the book[Available on this web site]. |
7 | 7.4.2 | 339 | 6th line below figure 7.11 | Telemetry Tracking and Telecommand |
8 | 8.2.1 | 359 | Para 3, Line 3 | global mobile packet radio services(GMPRS) |
9 | 9.4.1.3 | 447 | 6th line from the bottom of page. | In such cases, theoretical assumptions values have to be estimated based on heuristics, logic, etc. |
9 | 9.7 | 464 | 6th line from the bottom of page. | .. alternative methods within their respective jurisdiction to encourage efficient use of spectrum |
11 | 11.2.1 | 534 | Last entry Table 11.9 | Service link L Ka |
13 | 13.3.3.1 | 634 | Last but one line from the bottom of page | … …a signal to travel from the satellite to a receiver and velocity of electromagnetic wave in the intervening medium |
14 | 14.4.3 | 665 | First sentence of subsection | Clarification of text: The frequency planning process lays out carrier optimally such that radio link quality remains intact. The process does not include upper layer issues that degrade the quality of service to the end user. |